1.The heights of children in a second grade section are normally distributed with mean 52 inches and standard deviation 10 inches. What percentage of students will have height between 55 inches and 60 inches? a. 0.5% b. 5.0% c. 12% d. 17% What is the 80th percentile of the variable mentioned in the question  above? a. 43.6 b. 60.4 c. 0.84 d. -0.84 If you take a random sample of 64 students in question 1, what would be the mean and standard deviation of the average height of these 64 students? a. 52 inches and 10 inches b. 6.5 inches and 1.25 inches c. 6.5 inches and 10 inches d. 52 inches and 1.25 inches

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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1.The heights of children in a second grade section are normally distributed with mean 52 inches and standard deviation 10 inches. What percentage of students will have height between 55 inches and 60 inches?

a. 0.5%

b. 5.0%

c. 12%

d. 17%

What is the 80th percentile of the variable mentioned in the question  above?

a. 43.6

b. 60.4

c. 0.84

d. -0.84

If you take a random sample of 64 students in question 1, what would be the mean and standard deviation of the average height of these 64 students?

a. 52 inches and 10 inches

b. 6.5 inches and 1.25 inches

c. 6.5 inches and 10 inches

d. 52 inches and 1.25 inches

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