The normal curve that corresponds to P (X > 37) is C, as the shaded area corresponds to the probability of 0.4207.
The normal curve is a bell-shaped curve which is used to represent a continuous probability distribution. It is used to represent the probability of a random variable X, which is normally distributed with mean μ and standard deviation σ. In this case, we have X with mean μ = 50 and standard deviation σ = 7. To compute the probability P(X > 37), we first draw a normal curve with the area corresponding to the probability shaded. Then, we can look up the area from the table of areas under the normal curve. The area corresponds to 0.4207, and the normal curve that corresponds to this probability is C, as the shaded area corresponds to the probability of 0.4207. This normal curve has the mean of 50 and the standard deviation of 7, with the area beyond 37 shaded.
P(X > 37)
= 1 - P(X ≤ 37)
= 1 - 0.4207
= 0.5793
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what should i write blank can someone help pls
The blanks are completed as follows:
s/(s² - 18s + 81) = s/(s - 9)².F(s) = s/(s - 9)².Then the inverse Laplace transform is given as follows:
f(t) = e^(9t) + 9te^(9t).
How to obtain the inverse Laplace transform?The function for this problem is given as follows:
F(s) = s/(s² - 18s + 81).
Completing the squares at the denominator, we have that:
F(s) = s/(s - 9)².
Applying partial fraction decomposition, the function can be defined as follows:
s/(s - 9)² = A/(s - 9) + B/(s - 9)²
Expanding the right side, we have that:
s/(s - 9)² = [A(s - 9) + B]/(s - 9)²
Hence:
As - 9A + B = s.
Then the system for the coefficients is given as follows:
A = 1.-9A + B = 10-> B = 9A -> B = 9.Thus the function in the transform domain is of:
F(s) = 1/(s - 9) + 9/(s - 9)².
Applying the inverse Laplace transform, the function in the time domain is given as follows:
f(t) = e^(9t) + 9te^(9t).
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Please read both questions first, and guess whether the two answers would be the same, except one is positive and one is negative. Check whether you guessed correctly after you have done the calculations.
a) A company has increased its sales team from 40 people to 50 people. What is the percent change?
b) A company has reduced its management team from 50 people
to 40 people, what is the percent change?
PLEASE HELP
Answer:
Step-by-step explanation:
For a company picnic, Kylie ordered a box of fresh-baked gingerbread cookies and sugar
cookies. She got 60 cookies in all. 54 of the cookies were gingerbread. What percentage of
the cookies were gingerbread?
Write your answer using a percent sign (%).
10. a group conducted a poll of 2052 likely voters just prior to an election. the results of the survey indicated that candidate a would receive 46% of the popular vote and candidate b would receive 44% of the popular vote. the margin of error was reported to be 4%. the group reported that the race was too close to call. use the concept of a confidence interval to explain what this means What does it mean to say the race was too close to call?
The difference between the two candidates who voted is less than the margin of error, so the result cannot be predicted.
The difference between the two candidates voted is less than the margin of error
4% of 2052 is 4/100 x 2052 = 82.08
44% of 2052 is 902.88
46% of 2052 is 943.92
It increases as the level of confidence increases because the larger the expected proportion of intervals that will contain the parameter the larger the margin of error.
The race was too close to call means it is within the margin of error for one candidate to receive 44% of the popular vote and for the other candidate to receive 46%, the poll cannot predict the winner.
Therefore, The result cannot be predicted as the race was too close to call.
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assume that x is uniformly distributed on [0,3]. using the central limit theorem, find the shortest interval (around hn) that has 95% probability of containing the true value of h. (such an interval is known as 95% confidence interval for h).
The probability density function (pdf) for the uniform distribution has the basic formula: f(x) = 1/ (B-A) for A x B.
A continuous probability distribution, the uniform distribution is concerned with equally likely outcomes. It is referred to as having a rectangular distribution on the interval [a,b] or having a uniform distribution for the continuous random variable X. Above is a representation of the probability density function of a continuous uniform distribution. The probability of drawing a heart, club, diamond, or spade is equally likely; hence, the area under the curve is 1, which makes sense given that the total of all probabilities in a probability distribution is 1.
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Write 2 different equations you could use to solve for side m?
2. The Equation for value x is, x= 13 sin 52.
3. The value of m, m = l cos <N
4. The length of Hypotenuse is 7.92 m.
What is Trigonometry?The branch of mathematics concerned with specific functions of angles and their application to calculations. In trigonometry, there are six functions of an angle that are often utilised. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their names and acronyms (csc).
Given:
2. P= x
H= 13 cm
Using Trigonometry
sin 52 = P/ H
sin 52 = x/ 13
x= 13 sin 52.
3. P = n, B= m and H= l
Using Trigonometry
cos <N= B/H
cos <N= m / l
m = l cos <N
and, using Pythagoras theorem
H² = P² + B²
l²= m² + n²
m= √( l² - n²)
4. P = 7m
angle= 62
Using Trigonometry
sin 62 = 7/ H
0.88295 = 7/ H
H = 7/ 0.88295
H = 7.92 m
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a wooden cube, whose edges are one centimeter long, rests on a horizontal surface. illuminated by a point source of light that is x x centimeters directly above an upper vertex, the cube casts a shadow on the horizontal surface. the area of the shadow, which does not include the area beneath the cube, is 48 48 square centimeters. find the greatest integer that does not exceed 1000 x . 1000x. (1996,
The greatest integer that does not exceed 1000x is 1. the value of x is approximately 0.001.
What is the area?
The area of a shadow is the amount of surface area that is covered by the shadow. It is the two-dimensional projection of an object onto a surface.
Let the distance between the point source of light and the horizontal surface be h. Since the shadow is a projection of the cube onto the horizontal surface, the shadow has the same proportions as the cube. Therefore, the height of the shadow is h/x times the length of the shadow, which is 48x. The area of the shadow is then:
48x * h/x = 48h
Since the area of the shadow is 48x^2, we have:
48h = 48x^2
h = x^2
We are asked to find the greatest integer that does not exceed 1000x. Substituting the expression for h into the equation, we get:
1000x = 1000x^2
x = 1/1000
Hence, The greatest integer that does not exceed 1000x is 1. the value of x is approximately 0.001.
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cash received from long-term notes payable $ 67,000 purchase of investments 16,900 cash dividends paid 54,200 interest paid 27,100 compute cash flows from financing activities using the above company information. (amounts to be deducted should be indicated by a minus sign.)
cash dividends paid that should be recorded in the financing section of the statement of cash flow is $ 148300
With regards to the above, information, the amount of cash dividends paid that should be recorded is computed as;
= Cash dividends payable at the beginning of the year + Cash dividends declared for the year - Cash dividends payable at the end of the year
= $27,100 + $67,000 - $54,200
= $ 148 300
Therefore, cash dividends paid that should be recorded in the financing section of the statement of cash flow is $ 148300
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3x+2y=20 and y+3x=10
Answer:
Step-by-step explanation:
-3x - 2y = -20
3x + y = 10
-y = -10
y = 10
3x + 10 = 10
3x = 0
x = 0
(0, 10)
I Could Use Some Help...WRLD...999
Simplify the expression. –3x(4–5x) + (3x + 4)(2x – 7)
Answer:
21x^2 - 25x - 28
Step-by-step explanation:
= -3x (4 - 5x) + (3x + 4)(2x - 7)
= -12x + 15x^2 + 6x^2 - 21x + 8x - 28
= 21x^2 - 25x - 28
I hope my answer helps you.
he time in minutes) between arrivals of customers to a post office is to be modelled by the Exponential distribution with mean 0.59. Please give your answers to two decimal places.
Parta)
What is the probability that the time between consecutive customers is less than 15 seconds?
Part b)
Find the probability that the time between consecutive customers is between ten and fifteen seconds.
Part c)
Given that the time between consecutive customers arriving is greater than ten seconds, what is the chance that it is greater than fifteen seconds?
the probability that the time between consecutive customers is less than 15 seconds is 0.4327
Mean u=0.59
We are supposed to find the probability that the time between consecutive customers is less than 15 seconds
u=1/λ
0.59min=1/λ
0.59*60=1/λ
λ=1/0.59*60
λ=0.02824
The cumulative distribution function is used to describe the probability distribution of random variables.
The cumulative distribution function :P(X≤x)=F(x)=1-e^-λx
We are supposed to find the probability that the time between consecutive customers is less than 15 seconds
P(X≤15)=F(15)=1.e^-0.02824*15
P(X≤15)=F(15)=0.4327
Hence the probability that the time between consecutive customers is less than 15 seconds is 0.4327
The probability that the time between consecutive customers is between ten and fifteen seconds is 0.9000.
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angeliquw is buyinh towels for her aparetment. she finds some green twowels that cost $8 each and bule towels that cost 10$ each. many of each towel can she purchase?
She can purchase 3 blue towels and 5 green towels.
What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. what kinds of values and units
Let's say you go to the store to buy six apples.
You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples. Recognizing the units and values is crucial when using the unitary technique to a problem.
Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things.
We are aware of the quantity of apples and the amount of money in the aforesaid problem.
According to our question-
8 x 5 = 40
10 x 3 = 30
40 + 30 = 70
Hence, She can purchase 3 blue towels and 5 green towels.
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Please help!! Solve x^2 = 36 for x. I think it may be A not so sure tho.
Answer: You are correct
Step-by-step explanation:
True or false (show work)
1. 25% of 512 is equal to 1/4 x 500
2. 90% of 133 is equal to 0.9 x 133
3. 30% of 44 is equal to 3% of 440
4. The percentage 21 is 28 is equal to the percentage 30 is of 40
The first statement is false and the rest of the options are true.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
1. 25% of 512 is equal to 1/4 x 500, false due to 500.
2. 90% of 133 is equal to 0.9 x 133, true because 90% is equal to 0.90.
3. 30% of 44 is equal to 3% of 440, true because the value of both is the same.
4. The percentage of 21 is 28 is equal to the percentage of 30 is 40, true because the percentage of both cases is identical.
The first statement is false and the rest of the options are true.
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Which statements are true regarding the sequence below? Check all that apply.
20.4, 24, 244.
It can be represented using the formula f(x + 1) = (f(x)) when f(1) = 10.
It can be represented using the formula x=4
It can be represented using the formula fox)=
The domain of the sequence is all real numbers.
The range of the sequence is all natural numbers.
The statements that are true regarding the sequence below are
It can be represented using the formula f(x) = 10/3 (6/5)ˣ⁻¹The domain of the sequence is all real numbers.How to find the true statementsThe given sequence include 10/3, 4, 24/5, 244/25
Applying the formula f(x) = 10/3 (6/5)ˣ⁻¹ to it
for x = 1, f(x) = 10/3 (6/5)¹⁻¹ = 10/3
for x = 2, f(x) = 10/3 (6/5)²⁻¹ = 4
for x = 3, f(x) = 10/3 (6/5)³⁻¹ = 24/5
This shows that the formula works for it hence a correct statement
Real numbers include all positive and negative numbers, fractions and decimals alike and the domain are natural numbers which are part of real numbers
The range are also all real numbers and this go beyond natural numbers
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Please help:
89345+7899-5/2*8=?
Answer:
97224
Step-by-step explanation:
BODMAS
B ×
O ×
Division (5/2)
Multiplication (5/2*8)
Addition (89345+7899)
S ×
Do it in this order
Sorry I’m slow I need my mathematicians. If I make $11 and hour work 9 hours Sunday-Friday and get paid bi weekly how much would my check be?
Your's check would be $198 for two weeks with 9 hours of work from Sunday-Friday.
Word problems:In a word problem, the mathematical operations are written in text format. To solve such a problem, the text should be understood and simple basic arithmetic operations are applied.
Calculation:It is given that,
He/She makes $11 for 1 hour and works for 9 hours from Sunday to Friday.
For 9 hours of work, he/she gets, $11 × 9 = $99
Then, for two weeks, the payment = $99 + $99 = $198
So, he gets a biweekly check with $198.
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use implicit differentiation to find the derivative dy dx. b. find the slope of the curve at the given point. cos(y)
The slope of the curve at the given point is approximately -28
What is the derivative of a function?
Geometrically, the derivative of a function can be interpreted as the slope of the graph of the function or, more precisely, as the slope of the tangent line at a point. Its calculation, in fact, derives from the slope formula for a straight line, except that a limiting process must be used for curves.
To find the derivative of y with respect to x using implicit differentiation, we need to take the derivative of both sides of the equation cos(y) = 7x^4 - 7.
On the left side of the equation, we can use the chain rule to find the derivative of cos(y) with respect to x:
d/dx[cos(y)] = -sin(y) * dy/dx
On the right side of the equation, we can use the power rule to find the derivative of 7x^4 - 7 with respect to x:
[tex]d/dx[7x^4 - 7] = 28x^3[/tex]
Substituting these expressions into the original equation, we get:
[tex]-sin(y) * dy/dx = 28x^3[/tex]
To solve for dy/dx, we can divide both sides of the equation by -sin(y):
[tex]dy/dx = -(28x^3)/sin(y)[/tex]
To find the slope of the curve at the given point, we need to substitute the values of x and y into the expression for dy/dx.
The slope at (1, π/2). would be
slope = -(28((1)^3))/sin(π/2) = -28.
Hence, the slope of the curve at the given point is approximately -28.
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Let W Span {V1. every vector in W Vp Show that if x is orthogonal to each Vj, for ] < j < P,then xis orthogonal to'
Assume that the basis for a subspace V in Rn is v1,..., vp. Show that a vector in Rn is orthogonal to a vector in V if and only if it is orthogonal to every vector v1,..., vp.
What is a orthogonal vector?An orthogonal vector , In mathematics, orthogonality is an extension of perpendicularity, particularly in vector calculus and linear algebra. Basic geometry dictates that two lines or line segments are only perpendicular if they form a straight angle.
It makes sense to think of vectors as arrows, such as R 2 and R 3, when discussing orthogonal vectors in an inner product space (a real or complex vector space with a notion of vector multiplication).
There are inner product spaces where it makes no sense to conceive of vectors as arrows, yet one still needs to have some understanding of what it means when discussing orthogonal vs. perpendicular.
Hence, It is orthogonal to every vector in vector space, or o V. Every vector in V is a linear combination of these vectors since v1,..., vp serves as the basis for V.
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A triangle has vertices at (1, 4), (7, 4), and (7,-2). Select all the points which will lie on the median through the point (7, 4).
Answer:(4, 4), (7, 0), (4,-2)
Step-by-step explanation: The median of a triangle is the line segment connecting a vertex to the midpoint of the opposite side. In this triangle, the vertex at (7, 4) is connected to the midpoint of the side opposite it, which is the midpoint of the line segment between (1, 4) and (7, -2). This midpoint is located at (4, 0). Therefore, the median through (7, 4) will consist of the points (4, 4), (7, 0), and (4, -2).
se green's theorem to evaluate the line integral along the given positively oriented curve. c 5y 7e x dx 10x 9 cos(y2) dy c is the boundary of the region enclosed by the parabolas y
By using Green's Theorem, it can be calculated that
[tex]\int_c(5y+7e^x)dx+(10x+9cos(y^2))dy[/tex] = [tex]\frac{5}{3}[/tex]
What is Green's Theorem?
Green's Theorem gives a relationship between a line integral along a closed curve C and surface integral around plane region D bounded by C
By Green's Theorem,
[tex]\int_c Pdx+ Qdy = \int\int_D (\frac{\partial P}{\partial y} - \frac{\partial Q}{\partial x})dxdy[/tex]
To evaluate [tex]\int_c(5y+7e^x)dx+(10x+9cos(y^2))dy[/tex] using Green's Theorem,
Region is between the parabola [tex]y = x^2[/tex] and [tex]x = y^2[/tex]
To find point of intersection,
[tex]x = y^2\\x = (x^2)^2\\x = x^4\\x^4 - x = 0\\x(x^3 - 1) = 0\\x = 0 \ or \ x^3 - 1 = 0\\x = 0 \ or \ x^3 = 1\\x = 0 \ or \ x = 1[/tex]
Along y- axis the limit of integration is from y = [tex]x^2[/tex] to y = [tex]\sqrt{x}[/tex]
P = [tex]5y + 7e^x[/tex]
[tex]\frac{\partial P}{\partial y}[/tex] = 5
Q = [tex]10x + 9(cos(y^2))[/tex]
[tex]\frac{\partial Q}{\partial x}[/tex] = 10
By Green's Theorem,
[tex]\int_c(5y+7e^x)dx+(10x+9cos(y^2))dy[/tex]
= [tex]\int_{x = 0}^1\int_{y = x^2}^{\sqrt{x}}(10 -5)dxdy\\\\\int_{x = 0}^1\int_{y = x^2}^{\sqrt{x}}5dxdy\\\\\int_{x = 0}^1 5(\sqrt{x} - x^2)\\\\5[(\frac{2}{3})x^{\frac{3}{2}} - \frac{x^3}{3}]_0^1\\\\5(\frac{2}{3} -\frac{1}{3})\\\\\frac{5}{3}[/tex]
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Graph: y > 6
Is (-2,7) a solution? yes or no
Is ( 2,6) a solution? yes or no
Answer:(-2,7) is a yes
(2,6) is no pls mark brainiest
Step-by-step explanation: did a question like this and i mastered this subject
2. Tina is playing a computer game.
She starts with 100 points, and she
loses points based on these rules:
• Each time a player passes a level,
8 points are lost.
• Each time a player catches a
flower, 3 points are lost.
Part A
Suppose Tina catches 6 flowers per
level. Which inequality determines
the number of levels, p, that Tina
must pass to have fewer than 20
points left?
A. 100-8p - 6p - 3p ≤ 20
B. 100-8p - 6p - 3p < 20
C. 100-8p - 6px 3p ≤ 20
D. 100-8p - (3 x 6)p < 20
Part B
Tina must complete at least
_ levels.
Part A
p = number of levels
8p = amount of points lost for passing a level
3p = amount of points lost for catching a flower
(6x3)p = multiply the previous expression by 6 since there are 6 flowers per level. This represents the total number of points lost after catching 6 flowers. This expression is equivalent to (3 x 6)p, both of which simplify to 18p.
The quantities 8p and (3 x 6)p are subtracted from the total 100. Then we set that less than 20 to end up with the inequality of
100-8p - (3 x 6)p < 20
Answer: Choice D===================================================
Part B
Refer to the inequality set up in part A.
We'll solve for p.
100-8p - (3 x 6)p < 20
100-8p-18p < 20
100-26p < 20
-26p < 20-100
-26p < -80
p > -80/(-26) ..... inequality sign flips
p > 3.077
The decimal result is approximate. The inequality sign flips because we divided both sides by a negative number.
Round this value up to the nearest integer.
So p = 3.077 rounds up to p = 4. We do not go to p = 3 because
100-26p = 100-26*3 = 22
which is not under 20.
But p = 4 will work
100-26p = 100-26*4 = -4
Answer: Tina must complete at least 4 levels.
HELP THERS MORE OF THESE
Answer:
y=5x
Step-by-step explanation:
intercept is 0
Slope is 5
Jordan has seven blocks of ice.
The total weight of all seven blocks of ice is 5 kilograms.
6 of the blocks of ice each have a weight of 750 grams.
Work out the weight, in grams, of the other block of ice.
Answer:
500 grams
Step-by-step explanation:
6 weigh 750 so multiply them:
6 × 750 = 4500
4500 grams is equivalent to 4.5 kilograms
the total of all blocks of ice was 5 kg
therefore the remaining one is 0.5kg which is 500g
Evaluate the line integral, where C is the given plane curve. 1649 (x®y + sin(x)) dy, C is the arc of the parabola y = x2 from (0, 0) to (1, x2)
Line integral will be ∫c(x²y + sinx )dy = 1/3π²×π³ + 2π
Given:
C is the arc of parabola y = x² from (0,0) to (π,π²)
Let x be the parameter ; since the parabola is given as function of x
the parametric equations are
x=x,y=x², for 0≤x≤π
By using concept
∫c(x²y + sinx)dy = [tex]\int\limits^0_x {(x^2(x^2) + sinx} \, ).2xdx[/tex]
by applying the limits of integration we get ,
= 2 [ π².π³/6 + [ -πcosπ + sinπ - (0 + sin0)] ]
by calculating,
= 2 ( π².π³/6 + π )
= 1/3 π².π³ + 2π
Thus,
∫c(x²y + sinx )dy = 1/3π²×π³ + 2π
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Suppose That A Vector Y Is Orthogonal To Vectors U And V. Show That Y Is Orthogonal To The Vector U + V.
A vector Y is orthogonal to vectors U and V, so Y is orthogonal to the vector (U+V).
In the given question,
Suppose that a vector Y is Orthogonal to vectors U And V.
We have to show that Y is orthogonal to the vector U + V.
As to vectors are orthogonal if and only if their dot product is zero.
So Y∙U = 0 and Y∙V = 0.
To prove that Y is orthogonal to the vector(U+V), we have to show that Y∙(U+V) = 0.
As dot product is distributive. Now
Y∙(U+V) = Y∙U + Y∙V
As Y∙U = 0 and Y∙V = 0. So
Y∙(U+V) = 0 + 0
Y∙(U+V) = 0
Hence, Y is orthogonal to the vector (U+V).
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Express the following sum in sigma notation. Use 1 as the lower limit of summation and k for the index of summation. 1+16+81+256+625+1296
The answer to the sum is: ∑ k⁴ (k ranges from 1 to 6)
Express the sum in sigma notation :
According to the question,
1 = lower limit of summation
k = the index of summation
1 + 16 + 81 + 256 + 625 + 1296 = 1² + 4² + 9² + 16² + 25² + 36²
= 1⁴ + 2⁴ + 3⁴ + 4⁴ + 5⁴ + 6⁴ ( i.e 16 = 4²=(2²)²)
= ∑ k⁴ (k ranges from 1 to 6)
So, The answer to the sum is - ∑ k⁴ (k ranges from 1 to 6).
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A population numbers 12,000 organisms initially and grows by 17.5% each year.
Suppose P represents population, and t the number of years of growth. An exponential model for the population can be written in the form P = a â‹… b t where
P =
A population numbers 12,000 organisms initially and grows by 17.5% each year. The growth function of the population is P = 12,000 x 1.175^t
An exponential growth function can be written as:
P = A (1 + r)ⁿ
Where:
P = quantity after n periods
n = number of periods
r = growth rate per period
A = initial quantity
In the given problem, the period is the number of years t
A = 12,000
r = 17.5% = 0.175
Hence, the growth function:
P = 12,000 (1 + 0.175)^t
P = 12,000 x 1.175^t
Your question is incomplete, but most probably your question was:
A population numbers 12,000 organisms initially and grows by 17.5% each year. Suppose P represents population, and t the number of years of growth, write the function in terms of t.
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A deck of cards contains 52 cards, of which 4 are aces. You are offered the following wager: Draw one card at random from the deck. You win $10 if the card drawn is an ace. Otherwise, you lose $1 If you make this wager very many times, what will be the mean amount you win? (a) About - $1, because you will lose most of the tim
(b) About $9 because you win $10 but lose only $1 . (c) About -$10.15 that is, on average you lose about 15 cents. (d) About $0.77 that is, on average you win about 77 cents. (e) About $0 because the random draw gives you a fair bet.
About -$10.15 that is, on average you lose about 15 cents.
Using the principle of discrete probability, the expected value, which is a measure of the mean amount after many plays is - 2/13
Calculating the required probabilities :
P(winning) = P(drawing an Ace) = 4/52 = 1/13
Hence, P(losing) = 1 - 1/13 = 12/13
X :____ 10 _____ - 1
P(X) : _ 1/13_____ 12/13
The expected value :
E(X) = 10 × (1/13) + - 1(12/13)
E(X) = 10/13 - 12/13
E(X) = - 2/13
Hence, the measure of the mean amount is -2/13.
The victory value is $10, and the loss value is $-1.
Out of a total of 52 cards, this deck has 4 aces.
The probability can then be defined as the ratio of the number of desirable outcomes to the number of possible outcomes.
P(win) = number of favorable outcome/number of the possible outcome
= 4/52
= 1/13
P(loss) = number of favorable outcome/number of the possible outcome
= 48/52
= 12/13
Then we have
$10x1/13 + (-1)x12/13
= 10/13-12/13
= -2/13 dollars
= -$0.15
Know more about probabilities at:
https://brainly.com/question/24756209
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