The interval estimate of the population mean when a random sample is taken of the speed on highway is 59.5<h<64.1. Option C is correct.
What is margin of error?The probability or the chances of error while choosing or calculating a sample in a survey is called the margin of error.
The interval estimate of the population mean can be found out using the following formula:
[tex]\overline X\pm MOE[/tex]
Here, [tex]\overline X[/tex] is the average mean, and the MOE is the margin of error.
On a highway, a random sample is taken of the speed, in mph, of 50 cars.
A mean speed is 61.8 mphThe margin of error is +2.3 The confidence interval is 95%Put the values in the above formula as,
[tex]61.8\pm 2.3\\59.5,641[/tex]
Thus, the interval estimate of the population mean
[tex]59.5 < h < 61.8[/tex]
Hence, the interval estimate of the population mean when a random sample is taken of the speed on highway is 59.5<h<64.1. Option C is correct.
Learn more about the margin of error here;
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The stock of Company A gained 5% today to $54.60. What was the opening price of
the stock in the beginning of the day?
Answer: $51.85
Step-by-step explanation:
To find the answer, you would divide $54.60 by 100. You do that to figure out the amount of money for 1%. Then you multiply 5 to figure out 5%. Lastly, you would subtract the answer by $54.60 since your finding out how much it was at the beginning of the day. Equation: $54.60 ÷100= $.546 x 5= 2.73. 54.60- 2.75 =51.85
$51.85
To find the answer, you would divide $54.60 by 100. You do that to figure out the amount of money of 1%
Then you multiply 5 to figure out 5%. Subtract the answer by $54.60 since your finding out how much it was at the beginning of the day.
Equation: $54.60 ÷100= $.546 x 5= 2.73. 54.60- 2.75 =51.85.
Final result: $51.85
HELP ASAP PLEASE.
What are the coordinates of point A?
A. (2, 4)
B. ) (1.7, 3.8)
C. (6.6, 1.7)
D. (3.8, 1.7)
Answer:
B.
Step-by-step explanation:
Point A is found at (1.7, 3.8)
HELP I NEED HELP ASAP
Answer:
A
Step-by-step explanation:
(3х + 4) - (х + 2) =
The answer to (3x + 4) - (x + 2) is
2(x + 3).
(3x + 4) - (x + 2) = 2(x+3)
Answer:
2x + 2 is the answer.....
HELP ASAP!!!! NEED HELP
PLEASE HELP!!!
Answer:
54?
Step-by-step explanation: 17+19=36
36=90=126
180-126=54
A poster is regularly priced at $19.98 is on sale for 40% off. What is the sale price?
Answer:
$11.99
Step-by-step explanation:
19.98x.4=7.99
19.98-7.99=11.99
rewrite 3/4 and 7/6 so they have a common denominator
Answer:
9/12 14/12
Step-by-step explanation:
3. A survey of 400 recent high school graduates found that 340
had drivers licenses and 216 had jobs. 42 of the graduates
said that they had neither a drivers license nor a job.
Job
No Job
Total
340
License
No License
Total
42
216
184
a) Complete the above two way frequency table to represent
the above situation,
b) If one of these 400 graduates is randomly selected, what
is the probability that he or she had a job but no license?
Answer:
Look below
Step-by-step explanation:
Chart
Job No job Total
Lisence 198 142 340
No lisence 18 42 60
Total 216 184 400
60/400
simplified = 15/100
Which two ratios form a proportion ?
Answer:
your answer is D. hope this helped
I need help on this please n-5>-2
Answer:
I think that it is n<3
Step-by-step explanation:
Sammy opened a college savings account. She opened the account with $85, and then
deposited $45 each month. Which equation best models the relationship between m, the
number of monthly deposits Sammy made, and S, the total amount in Sammy's college savings
account?
A. s= 85m - 45
B. s=45m - 85
C. s= 85m + 45
D. s= 45m + 85
Answer:
C. s= 85m + 45
Step-by-step explanation:
Given data
She opened the account with $85
and deposited $85
The equation that best models the relationship is
s= 85m + 45
Hence option C is correct
Someone plz help me I will give brainliest
Answer:
275 non spectators
Step-by-step explanation:
1. Subtract
42,500 - 31,750 - 10,475 =
275
2. Get answer
275 non-spectators
in a recent presidential election ohio had 18 electoral votes. This is 20 votes less than Texas had.How many electoral votes did texas have?
*I NEED THE EQUATION AND THE ANSWER PLEASE***
Answer:
38
Step-by-step explanation:
y=18+20
Answer:
38
Step-by-step explanation:
hope this helps you out
PLEASE HELP MEEEE 100 POINTS!!!! WILL MARK BRAINILIST!!!!!!!!!!!!1 ONLY ANSWER IF YOU KNOW !!!!!!111
Answer:
volume of the dough = independent
Step-by-step explanation:
here is your answer! volume of the dough = independent
have a good day
Jonas wants to take out a bank loan of $7,500 to purchase a used car
Amanda drinks 2 1/2 pints of milk a day. How much is this in cups?
Answer: A pint is equal to 2 cups (example: a large glass of milk!) When measuring many cups of liquid all put together we might want to use quarts. A quart (qt) is the same thing as 4 cups or 2 pints.
Step-by-step explanation:
Answer:
2 cups
Step-by-step explanation:
Can someone help please
Answer:
B
Step-by-step explanation:
Questions 1-4 I'm very confused on this
Answer:
All four are linearSlopes: 2, 1/2, - 2/3, 3/4Step-by-step explanation:
Top leftRate of change is same for each step:
10 per each 5Slope is:
(25 - 15)/(5 - 0) = 10/5 = 2Top rightRate of change is same for each step:
1 per each 2Slope is:
(6 - 5)/(3 - 1) = 1/2 Bottom leftRate of change is same for each step:
-2 per each 3Slope is:
(30 - 32)/(5 - 2) = -2/3Bottom rightRate of change is same for each step:
3 per each 4Slope is:
(20 - 17)/(5 - 1) = 3/4Mark's football team has scored about 24 points each game. They played 12 games this season.
What is the best estimate for the total number of points they scored in the season?
Answer:
288 points
Step-by-step explanation:
24 × 12 = 288
hope this helps...
Step-by-step explanation:
24*12=288 points (ans)
HELPPP!! BRAINLIEST IF U ANSWER
Answer:
180
Step-by-step explanation:
k = 3
v = 60
(Found v by dividing any of the top numbers by the bottom number, ex: 420/7 = 60)
3k = 3(60)
3k = 180
Answer:
180
Step-by-step explanation:
2 3
120 ?
120 x 3 = 360
360/ 2 = 180
in between what 2 integers is the square root of 48
Answer:
7,6
Step-by-step explanation:
the square root of 49 is 7 and
the square root of 36 is 6
so it must be between 7 and 6
cos theta = -5/6
180° <0<270°
Answer:choccy milk solve all yo problems
pop a choccy milk
A rectangle is shown on the coordinate plane below
Answer:
hi
Step-by-step explanation:
Answer:
True, False, False, False, True, FalseStep-by-step explanation:
Coordinates of A, B and C are:
A(-5, -8), B(-8, 1), C(-2, 3)The distances AB and BC are:
AB = √(-8 + 5)² + (1 + 8)² = √9 + 81 = √90 = 9.48 ≈ 9.5BC = √(-2 + 8)² + (3 - 1)² = √36 + 4 = √40 = 6.32 ≈ 6.3Perimeter of rectangle:
P = 2(9.5 + 6.3) = 31.6 ≈ 32Area of rectangle:
A = 9.5*6.3 = 59.85 ≈ 60Correct choices are: 1 and 5, the rest are incorrect
solve the equation for c
M+3c=8
Answer:
c = [tex]\frac{8-M}{3}[/tex]
Step-by-step explanation:
Given
M + 3c = 8 ( subtract M from both sides )
3c = 8 - M ( divide both sides by 3 )
c = [tex]\frac{8-M}{3}[/tex]
You are purchasing drywall for a remodeling job. Mike’s Drywall charges a delivery fee of $25 and charges $10 per
sheet. Jimbo’s Drywall charges a delivery fee of $50 but only charges $8 per sheet. How many sheets of drywall
would you have to order for the deals to be equal? How much would the charge be?
Answer:
12.5 sheets; $150
Step-by-step explanation:
6 is divided by the square of a number.
Answer:
Step-by-step explanation:
6 is divided by square of a number
The phrase a number means an arbitrary variable, let's call it x.
x
the square of this means we raise x to the power of 2:
x^2
Next, we divide 6 by x^2:
6/x^2
The height of the water in a pool is proportional to the minutes it takes for the pool to fill up. If the height of the water is 2 inches after 5 minutes, what is the constant proportionality/constant of variation in this situation
Answer:
40 minutes for 8 inches
Step-by-step explanation:
Calculate or Simplify the value of each expression a {-8} . 2/3
Answer:
Step-by-step explanation:
[tex](-8)*\frac{2}{3}=\frrac{(-8)*2}{3}= \frac{-16}{3}[/tex]
Please Help Asap!
The radius r of the base of a cone is given by the equation r=(3Vπh)1/2, where V is the volume of the cone and h is the height of the cone. Find the radius of the paper cup to the nearest inch. Use 3.14 for π.
The radius is about
a___inch(es).
Answer:
1 inch.
STEP BY STEP EXPLANATION:
We are given with the following equation r=(3V/πh)^1/2. By the picture we know that "V' is volume which translated to 5 in this problem, "π" is 3.14 and "h" is out height or 4in (in the picture we get all this values).
Therefore everything that there is left is to substitute and answer.
r = (3[5]/3.14[4])^1/2 - multiply the numbers
r = (15/3.14[4])^1/2 ~ (15/12.56)^1/2 -convert the decimal into a fraction and keep going
....
I must say the answer is 1 because it's rounded it's an approx. because the exact number the problem gives us is 1.09 rounded ends up being just 1
Plz answer the questions below
Answer:
first figure: y=70
second figure: Guessing that that number is 99, x=99, y=99, z=81
third figure: x=180-48-77=55 x=55
Step-by-step explanation: