Therefore , the solution of the given problem of test statistic comes out to be 4.0085 is the test statistic for this two-sample t-test.
What is test statistics?The Z-statistic, which confirms the precision of the conventional null hypothesis, is the only strategy that's even remotely close to a Z-test. Consider extrapolating a 2.5 E score in a 2 X y examination with a 0.05 threshold of significance. The p-value connected to this Z-value is 0.0124.
Here,
A two-sample t-test's test statistic is calculated as follows:
The formula for
=> t is (mean1 - mean2) / √((s1 / n1) + (s2 / n2)).
where mean1, mean2 represent the sample means for Group 1 (private institutions) and Group 2 (public institutions), respectively; s12, s22 represent the sample variances for
Groups 1 and 2, and n1, n2 represent the sample sizes for Groups 1 and 2, respectively.
Let's compute the test statistic based on the provided information:
The sample mean (mean1) for private institutions (Group 1) is $43,120.
$1,671,699,489.05 is the sample variance (s12).
Sample (n1) size is 37.
Public Institutions: Sample mean (mean2) = $25,469 (Group 2).
$1,682,553,858.66 is the sample variance (s22).
Number of samples
=> (n2): 39
=> t = (43,120 - 25,469) / √((1,671,699,489.05 / 37) + (1,682,553,858.66 / 39))
=> t = 4.0085
Therefore, 4.0085 is the test statistic for this two-sample t-test.
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Is (2, 3) a solution to this system of equations?
y = -2x + 7
y = x + 1
yes
no
Answer:
Yes.
Step-by-step explanation:
(2, 3) means we'll let x be 2 and y be 3. Let's solve both equations first:
y = -2x + 7
3 = -2(2) + 7
3 = -4 + 7
:. 3 = 3
Okay, so one half is proven. Let's do the other half now.
y = x + 1
3 = 2 + 1
3 = 3
:. (2,3) is a solution to the system of equations.
I really need help with this two please help to find x value and explain with reasons
In the first triangle, the angle x = 45°
In the second triangle, the angle y = 75°
In the second triangle, the angle x = 45°
How to find the angles in the triangles?To find the angles in the triangles, we proceed as folows.
a. In the first triangle, let the base angle to the left be p. We know that we have a parallelogram there.
Now, in the parallelogram,
102° + p = 180°sum of (interior angles of a parallelogram)
So, p = 180° - 102°
= 78°
Now, in the larger triangle,
x + p + 57° = 180° (sum of angles in a triangle)
Since p = 78°, we have that
x + 78° + 57° = 180°
x + 135° = 180°
x = 180° - 135°
= 45°
So, x = 45°
b. In figure 2, we have two isoceles triangles.
i. In the first triangle, both base angles are y.
So, y + y + 30° = 180° (sum of angles in atriangle)
2y + 30° = 180°
2y = 180° - 30°
2y = 150°
y = 150°/2
y = 75°
So, y = 75°
ii. In the second triangle also, both base angles are x and the other angle is a right angle which is 90°.
So, x + x + 90° = 180° (sum of angles in a triangle)
2x + 90° = 180°
2x = 180° - 90°
2x = 90°
x = 90°/2
x = 45°
So, x = 45°
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Substitute the supplied value and simplify both sides of the equation, if necessary. Then decide if the supplied value is or is not a solution.
m + 2(m + 1) = 14 {4}
The equation simplifies to 14 = 14, which is a true statement.
What is the purpose of the equation?In mathematics, an equation is defined as a set of numbers that contains operations and may contain a variable. Equations are used to solve for these unknown variables using various operations such as addition, subtraction, multiplication and division.
Replacing m by 4, we get:
m + 2 (m + 1) = 14
4 + 2 (4 + 1) = 14
4 + 2(5) = 14
4 + 10 = 14
14 = 14
The equation simplifies to 14 = 14, which is a true statement. Therefore, the given value 4 is a solution to Eq.
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A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 17 years with a variance of 16 . If the claim is true, in a sample of 43 wall clocks, what is the probability that the mean clock life would be less than 17.9 years? Round your answer to four decimal places.
There is a 0.9830, or 98.30%, probability that the mean clock life will exceed 12.5 years.
What is probability?Probability is a metric used to express the possibility or chance that a particular event will occur.
Probabilities can be expressed as fractions from 0 to 1, as well as percentages from 0% to 100%.
Probability is simply the possibility that something will happen. When we don't know how something will turn out, we can talk about the possibility of one outcome or the likelihood of several.
The study of events that fit into a probability distribution is known as statistics.
So, the likelihood that the average clock life would exceed 12.5 years:
This is the p-value of Z when X = 12.5 subtracted by 1.
So,
Z = X - μ/σ
Z = 12.5 - 14/.07071
Z = -2.12
Z = The pvalue for -2.12 is 0.0170.
1 - 0.0170 = 0.9830
The likelihood that the mean clock life will be longer than 12.5 years is 0.9830, or 98.30%.
Therefore, there is a 0.9830, or 98.30%, probability that the mean clock life will exceed 12.5 years.
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Complete question:
A production manager at a wall clock company wants to test their new wall clocks. The designer claims they have a mean life of 14 years with a variance of 25. If the claim is true, in a sample of 50 wall clocks, what is the probability that the mean clock life would be greater than 12.5 years? Round your answer to four decimal places.
A checkout clerk at a department store is expected to complete 16 transactions every hour.
In the past 20 minutes, he completed 6 transactions.
Choose True or False for each statement.
Statements:
If the clerk continues at the same rate, he will meet his goal of 16 transactions in 1 hour.
At his current rate, the clerk will complete 12 transactions in 1 hour.
At his current rate, the clerk will complete 9 transactions every half hour.
If the clerk continues at this rate for a 6-hour shift, he will complete 96 transactions.
✓ - True If the clerk continues at the same rate, he will meet his goal of 16 transactions in 1 hour.
➜ This is true. The clerk is currently going at 6 transactions per 1/3 hours. 6 * 3 = 18, and 18 > 16.
✗ - False At his current rate, the clerk will complete 12 transactions in 1 hour.
➜ This is false. As stated above, he will complete 18.
✓ - True At his current rate, the clerk will complete 9 transactions every half hour.
➜ Let us set up a proportion to check. Then we will cross-multiply and solve.
[tex]\frac{20\;min}{6} =\frac{30\;min}{x}[/tex]
180 = 20x
x = 9
➜ Yes, he will complete 9 every half hour.
✗ - False If the clerk continues at this rate for a 6-hour shift, he will complete 96 transactions.
➜ We can utilize a proportion again. 6 hours is equal to 360 minutes. Then, we will cross-multiply and solve.
[tex]\frac{20\;min}{6} =\frac{360\;min}{x}[/tex]
20x = 2,120
x = 106
➜ He will complete 106 transactions, not 96. It depends on if they're asking for exactly 96 or at least 96.
b) d=22,4 mm d) d= 7 km f) r=0,5 hm h) r= ² kr km 3 C≈ C≈ C≈ C≈
The height is 230 feet after 9.125 seconds.
How do we calculate?We have the equation that describes the height of the object as a function of time as:
h(t) = -16t^2 + 145t + 2
We input the values and simplify:
-16t^2 + 145t + 2 = 230
-16t^2 + 145t - 228 = 0
we can use the quadratic formula, to solve this quadratic equation,
t = (-b ± √(b^2 - 4ac)) / 2a
where a = -16, b = 145, and c = -228.
t = (-145 ± √(145^2 - 4(-16)(-228))) / 2(-16)
t = (-145 ± √ (21025)) / (-32)
t = (-145 ± 145) / (-32)
t = 0.625 seconds or t = 9.125 seconds
In conclusion, the height is 230 feet after 9.125 seconds.
#complete question:
An object is thrown upward at a speed of 145 feet per second by a machine from a height of 2 feet off the ground. The height h of the object after t seconds can be found using the equation
When will the height be 230 feet?
The function = 50 − 1.6 can be used to determine the amount, in fluid ounces, of laundry detergent remaining after x loads of laundry have been done. What is the rate of change amount of laundry in fluid ounces with respect to the number of loads of laundry that have been done?
The rate of change of the amount of laundry with respect to the number of loads is a constant value of -1.6 fluid ounces per load.
What is linear equation?Any equation that has terms that are either constants or the product of a constant and a variable of the first degree (exponent 1) is said to be linear. In other words, the equation's greatest degree for any variable is 1. One way to express a linear equation is as follows:
ax + b = 0
If an is not equal to zero, a and b are constants, and x is the variable. This is how a linear equation is typically expressed.
The given function is f(x) = 50 - 1.6x.
Now, the rate of change is the slope of the equation.
Comparing the equation with that of the linear equation y = mx + c we see that the slope is -1.6.
Hence, the rate of change of the amount of laundry with respect to the number of loads is a constant value of -1.6 fluid ounces per load.
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URGENT Complete the table.
It is in the image below
Answer:
Step-by-step explanation:
Step-by-step explanation:
4=2×2
8=2×4
12=2×6
16=2×8
20=2×10
24=2×12
Word problem down below: Fairly easy.
Based on the word problem, the answer is not one of the given options (E. NOTA).
How to explain the word problemIn this case, we have 9 letters and we want to select all of them, so n = 9 and r = 9. Therefore:
A = 9!
A = 362,880
B) The hypotenuse of a right triangle can be found using the Pythagorean theorem:
c^2 = a^2 + b^2
In this case, we have a = 9 and b = 12. Therefore:
c^2 = 9^2 + 12^2
c = 15
So, B = 15.
y - 9 = 3(x - 6)
y - 9 = 3x - 18
y = 3x - 9
The y-intercept of this line is -9, so C = -9.
Therefore, A + B + C = 362,880 + 15 - 9 = 362,886.
So the answer is not one of the given options (E. NOTA).
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Find the measure of angle A.
A
8x + 2
10x - 4
38°
Answer:
8x + 2 + 10x - 4 + 38 = 180
18x + 36 = 180
18x = 144, so x = 8
Angle A measures 8(8) + 2 = 64 + 2 = 66°.
The frequency table represents the fraction of an hour
Rita spends writing in her journal each night. Represent
this data in the line plot.
16. What fraction of an hour did Rita spend most days
writing?
17. What is the difference between the greatest amount
of time spend writing and the least?
A line plot that represents the data is shown in the image attached below.
A fraction of an hour which Rita spend most days writing is 3/4.
The difference between the greatest amount of time spend writing and the least is 3/4.
What is a line plot?In Mathematics and Statistics, a line plot is a type of graph that is used for the graphical representation of data set above a number line, while using crosses, dots, or any other mathematical symbol.
In this scenario and exercise, we would use an online graphing calculator to graphically represent the given data set on a line plot as shown in the image attached below.
Additionally, we can logically deduce that the mode of the data set is equal to 3/4 (the fraction of an hour Rita spend most days writing) because it has the highest frequency of 5.
Difference = greatest amount of time - least amount of time
Difference = 1 - 1/4
Difference = 3/4.
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What is the equation in point-slope form of the line that passes through the points (7,5) and (−4,−1) ? Responses y+1=67(x+4) y plus 1 equals fraction 6 over 7 end fraction left parenthesis x plus 4 right parenthesis y+1=611(x+4) y plus 1 equals fraction 6 over 11 end fraction left parenthesis x plus 4 right parenthesis y+4=116(x+1) y plus 4 equals fraction 11 over 6 end fraction left parenthesis x plus 1 right parenthesis y−1=611(x−4)
The line that goes through the specified points has the equation into point-slope form is [tex]y+1=6/11(x+4)[/tex].
What is a straight line equation?X-axis points equal (7, -4).
Y-axis points are equal to (5, -1).
To determine the equation of the line passing through the specified points in point-slope form:
A straight line equation's direction and steepness are commonly described by its slope, which is also known as a line's gradient.
In mathematics, the following formula yields the slope of a line:
Slope(m) = [tex]y2-y1/x2-x1[/tex]
slope= [tex]\frac{-1-5}{-4-7}[/tex]
slope= 6/11
To find point slope:
[tex]y-y1=m(x-x1)\\y-(-1)=6/11(x-(-4)\\y+1=6/11(x+4)[/tex]
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What is m∠a?
A straight angle divided by a ray into two angles. The smaller angle has a measure of 50 degrees.
40°
50°
90°
130°
The___is the sum of the lengths of the sides of a closed figure. A-apothem B-area C-total D-perimeter
Answer: D-perimeter
Step-by-step explanation: The sum of the lengths of all the sides of a closed figure is called its perimeter.
Answer:
Perimeter
Step-by-step explanation:
The sum of the lengths of all the sides of a closed figure is called its perimeter.
Find the measure of x in circle C shown below.
x =
(50 points will give brainiest for effort)
The measure of the value of x in the circle given is calculated as equal to: x = 12.
How to Find the Measure of x in the Circle?A semicircle is a two-dimensional shape that is half of a circle, consisting of a curved boundary or arc and a diameter or straight line segment that connects the two endpoints of the arc. This is always equal to 180 degrees.
Therefore, we have the equation:
12x + 6 + 3x - 6 = 180
Combine like terms:
15x = 180
Divide both sides by 15
x = 180/15
x = 12
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The diagram below not drawn to scale. Shows a triangle ABC which represent; the cross-section of a roof. BD is the perpendicular to ADC. Calculate the A) length= BD
B) measure of angle CBD
c) area of triangle ABC
d) bearings of B and C
Answer) : B measure of angle CBD
Step-by-step explanation: BD is perpendicular to ADC now we know that there is no scale so all you have to do is measure the length and we gat that answer.
5. Jennifer solved a math problem. The answer. to her problem was in square inches. Which formula did Jennifer most likely use to solve her problem?
A P=(2xl) + (2xw)
B V=SxSxS
C P= 4xs
D A= SXS
Answer:
D. A = s × s
Step-by-step explanation:
D. A = s × s is an area formula. Area is side times side. This is an area formula for a square. The units of area are square units. Since Jennifer has square inches in her answer, she was working on an area problem.
A. and C. are perimeter formulas. Perimeter is the distance around the outside of a shape. The units of perimeter are straight up plain, one-dimensional units like inches (or feet, meters, miles, km)
B. is a volume formula. The units of volume is cubic units or units to the third power.
The answer is D.
look at the picture below
The surface area of the composite solid is given as follows:
194 units squared.
What is the surface area of a rectangular prism?The surface area of a rectangular prism of height h, width w and length l is given by:
S = 2(hw + lw + lh).
This means that the area of each rectangular face of the prism is calculated, and then the surface area is given by the sum of all these areas.
The prism in this problem is composed as follows:
Rectangular prism of dimensions 4, 7 and 3.Two right triangles of dimensions 4 and 3.One square of side length 5.One rectangle of dimensions 5 and 7.Hence the surface area of the prism is given as follows:
S = 2(4 x 7 + 4 x 3 + 3 x 7) + 4 x 3 + 5² + 5 x 7
S = 194 units squared.
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A normal distribution has a mean of19 and a standard deviation of . What percent of values are from 19 to 34
what is the % of the values from 19to 34
It should be noted that 49.87% of the values fall between 19 and 34 in the original normal distribution.
How to calculate the percentageFor the lower bound of 19, the z-score is:
z = (19 - 19) / 5 = 0
For the upper bound of 34, the z-score is:
z = (34 - 19) / 5 = 3
Looking up the area under the curve for a z-score of 3 in a standard normal distribution table, we find it to be 0.9987. Looking up the area under the curve for a z-score of 0, we find it to be 0.5. Therefore, the area under the curve between z-scores of 0 and 3 is:
0.9987 - 0.5 = 0.4987 = 49.87%
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. Labor Variances Ellen Chenoweth, the manager of the city of St. Paul road maintenance shop, uses standards to judge performance. Because a clerk mistakenly discarded some labor records, however, Ellen has only partial data for April. She knows that the total direct-labor flexible-budget variance was $1,643 favorable. Moreover, a recent pay raise produced an unfavorable labor price variance for April of $1,157. The actual hours of input were 1,780 and the standard labor price was $20 per hour. 1. Find the actual labor rate per hour 2. Determine the standard hours allowed for the output achieved.
Labor Variances Ellen Chenoweth, the manager of the city of St. Paul road maintenance shop, uses standards to judge performance, the actual labor rate per hour for April was $19.35.
1. Actual Labor Rate per Hour:
The labor price variance formula is:
Labor Price Variance = (Actual Labor Rate - Standard Labor Rate) x Actual Hours
We are given that the labor price variance for April was unfavorable and equal to $1,157. We also know that the standard labor rate was $20 per hour. Using the formula above and plugging in the known values, we can solve for the actual labor rate:
-1,157 = (Actual Labor Rate - 20) x 1,780
-1,157 = 1,780Actual Labor Rate - 35,600
1,780Actual Labor Rate = 34,443
Actual Labor Rate = 19.35
Therefore, the actual labor rate per hour for April was $19.35.
2. Standard Hours Allowed for the Output Achieved:
The flexible-budget variance formula is:
Flexible-Budget Variance = (Actual Hours - Standard Hours) x Standard Labor Rate
We are given that the flexible-budget variance for April was favorable and equal to $1,643. We also know that the standard labor rate was $20 per hour.
Using the formula above and plugging in the known values, we can solve for the standard hours allowed:
1,643 = (1,780 - Standard Hours) x 20
1,643 = 35,600 - 20Standard Hours
20Standard Hours = 33,957
Standard Hours = 1,697.85
Therefore, the standard hours allowed for the output achieved in April was 1,697.85.
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When Joann and Shana were counting the amount of money they had in their wallets, the total was at least$56 and at most $85. If Shana has only in her wallet, which of the following inequalities represents all possible values for the amount of money, j, that Joann has?
The inequality that represents all possible values for the amount of money that Joann has is 21 ≤ J ≤ 50.
What inequalities represents values for the amount of money that Joann has?Let's call the amount of money that Joann has in her wallet "J" and the amount of money that Shana has in her wallet "S".
We know that the total amount of money they have is at least $56 and at most $85. Therefore, we can write two inequalities:
J + S ≥ 56 (the total is at least $56)
J + S ≤ 85 (the total is at most $85)
We also know that Shana has only $35 in her wallet. We can substitute this value for S in the inequalities to get an inequality that represents all possible values for the amount of money that Joann has:
J + $35 ≥ 56 (substituting S = $35 in the first inequality)
J + $35 ≤ 85 (substituting S = $35 in the second inequality)
Simplifying these inequalities by subtracting $35 from both sides, we get:
J ≥ 21 (the amount of money Joann has is at least $21)
J ≤ 50 (the amount of money Joann has is at most $50).
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A particle moving in the horizontal direction has its position given by x(t). Find the expression for the velocity.
Ignore the pencil writing and red pen, just answer the printed answer.
The expression for the velocity is v(t) = 30m/s
Expression for the Velocity calculation(a) x(t) = 30t
The velocity is the derivative of the position function with respect to time:
v(t) = dx/dt
Since x(t) = 30t, we have:
v(t) = d/dt (30t)
= 30
So the expression for velocity is v(t) = 30 m/s.
(b) x(t) = 7sin(30)
The velocity is the derivative of the position function with respect to time:
v(t) = dx/dt
Since x(t) = 7sin(30), we have:
v(t) = d/dt (7sin(30))
= 7cos(30) * d/dt (30t)
= 3.5cos(30)
So the expression for velocity is v(t) = 3.5cos(30) m/s.
(c) x(t) = ecos(701)
The velocity is the derivative of the position function with respect to time:
v(t) = dx/dt
Since x(t) = ecos(701), we have:
v(t) = d/dt (ecos(701))
= -e sin(701) * d/dt (701t)
= -701e sin(701t)
So the expression for velocity is v(t) = -701e sin(701t) m/s.
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A rectangular container has a square base with an area of 25 square inches. The container had a height of 4 inches. What is the volume, in cubic inches, of the container?
The volume of the container is 100 cubic inches.
how can we calculate the volume of a rectangle?The volume of a rectangular container is calculated by multiplying its base area by its height. Since the base of the container is square with an area of 25 square inches, the length of each side of the square base is the square root of 25, which is 5 inches.
Therefore, the volume of the container can be calculated as follows:
Volume = Base Area × Height
Volume = 25 square inches × 4 inches
Volume = 100 cubic inches
So, the volume of the container is 100 cubic inches.
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Can anybody help me on the question.
ASAP
The hanger in the illustration will have the value x = 6, and it will remain balanced.
Define equations?Mathematical expressions with two algebraic expressions on either side of the equals (=) sign are called equations. It demonstrates the equality of the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in each mathematical equation. To determine the value of an unknown variable that stands in for an unknown quantity, equations can be solved.
Here's the query,
Considering the graph,
The hanger's equation is as follows:
4x= 24
There are 4 numbers here that represent the value of the hanger.
So, x+x+x+x will be 24.
The equation is thus:
4x = 24.
Now, by resolving the equation, we can determine the value of x that balances the hanger:
4x = 24.
When you divide 4 on both sides:
x = 24/4
x = 6.
As a result, the hanger will remain in equilibrium for x = 6.
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Find the range of the list of values. 3, 16, 22, 25, 24, 23, 16, 16
Answer:
range = 22
Step-by-step explanation:
the range is the difference between the largest and smallest values in the data set.
largest value = 25 , smallest value = 3
range = 25 - 3 = 22
Can you prove this trigonometric identity?
tan1/2x(2cotx+tan1/2x)=1
The trigonometric identity has been proven as 1 in the space below
How to prove the identityGiven the identity:
tan(1/2x) (2cot(x) + tan(1/2x)) = 1
To prove this identity, let's start by expressing cot(x) in terms of tan(x):
cot(x) = 1 / tan(x)
Now, replace cot(x) in the given identity:
tan(1/2x) (2(1/tan(x)) + tan(1/2x)) = 1
Now, let's use the double angle formula for tan(x):
tan(x) = 2 * tan(1/2x) / (1 - tan^2(1/2x))
Replace tan(x) in the equation:
tan(1/2x) (2(1/(2 * tan(1/2x) / (1 - tan^2(1/2x))) + tan(1/2x)) = 1
Simplify the equation:
tan(1/2x) ((1 - tan^2(1/2x)) + tan(1/2x) * tan(1/2x)) = 1
Now, notice that the expression in the parentheses is equal to 1:
(1 - tan^2(1/2x)) + tan^2(1/2x) = 1
So, we can simplify the equation further:
tan(1/2x) * 1 = 1
This directly leads us to the original identity:
tan(1/2x) = 1
Thus, the trigonometric identity is proven.
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if 8 out of 12 marbles in a bag are green, what is the probability that a marble selected at random from the bag will NOT be green?
Answer:
The Probability that a marble selected at random from the bag will NOT be green is 1/3
Step-by-step explanation:
The probability of selecting a green bag
= Total No.of green bags/ Total number of bags
=8/12
= 2/3
Then the probability not of selecting a green bag
= 1 - The probability of selecting a green bag
= 1-(2/3)
= 1/3
Is (3, 5) a solution to this system of equations?
y = 5
Y= -5/3x+10
yes
no
Yes, (3, 5) is a solution to this system of equations.
How do you calculate the equation system?
The system has a single solution if the m-values of the two equations differ. The system has no solution if the two equations have the same m-value but distinct b-values.
Substituting x = 3 and y = 5 into the equations, we get:
y = 5 (which is already given)
y = (-5/3)x + 10
y = (-5/3) * 3 + 10
y = -5 + 10
y = 5
Therefore, both equations are satisfied by the point (3, 5), making it a solution to the system of equations.
Yes, (3, 5) is a solution to this system of equations.
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which of the following equations can be used to find the misssing angle x in triangle 42
The equation in the triangle to find x is x + 84 = 180.
Option B is the correct answer.
We have,
The sum of the angles in a triangle is 180.
And,
42 + 42 + x = 180
84 + x = 180
x = 180 - 84
x = 96
Thus,
The equation in the triangle to find x is x + 84 = 180.
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In Math town,60% of the population are males and 30% of them have brown eyes. Of the total math town population 28 % have brown eyes. What percentage of the females in math town have brown eyes?
25% percent of the females in Math town have brown eyes. To find the number of females with brown eyes, we need to subtract the number of males with brown eyes from the total number of people with brown eyes
what is percent ?
A percent is a way of expressing a number as a fraction of 100. The symbol for percent is %, which means "per hundred".
In the given question,
Let's assume that there are 100 people in Math town.
60% of them are males, so there are 60 males and 40 females.
Out of the 60 males, 30% have brown eyes, so there are 18 males with brown eyes.
28% of the entire population have brown eyes, so there are 28 people with brown eyes.
To find the number of females with brown eyes, we need to subtract the number of males with brown eyes from the total number of people with brown eyes:
28 - 18 = 10
So, there are 10 females with brown eyes.
Out of the 40 females in Math town, what percentage have brown eyes?
10 brown-eyed females out of 40 females is:
10/40 = 0.25 or 25%
Therefore, 25% of the females in Math town have brown eyes.
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