A teacher finds that the test scores of a group of 40 students have a mean of 72 and standard deviation of 8. a. If Henry has a test score of 82, what is Henry's z-score? b. Henry's score is higher than that of 35 of the 40 students who took the test. Find the percentile for Henry's score.
A teacher finds that the test scores of a group of 40 students have a mean of 72 and standard deviation of 8. a. If Henry has a test score of 82, what is Henry's z-score? b. Henry's score is higher than that of 35 of the 40 students who took the test. Find the percentile for Henry's score.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Can you help me number 3.
![3. A teacher finds that the test scores of a group of 40 students have a mean of 72 and standard
deviation of 8.
a. If Henry has a test score of 82, what is Henry's z-score?
b. Henry's score is higher than that of 35 of the 40 students who took the test. Find the
percentile for Henry's score.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F21bead4b-e054-475e-8bb8-06c5bf087672%2F8836dae4-f837-4d6a-9d40-a5df02cc6adf%2Frdhkjsd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3. A teacher finds that the test scores of a group of 40 students have a mean of 72 and standard
deviation of 8.
a. If Henry has a test score of 82, what is Henry's z-score?
b. Henry's score is higher than that of 35 of the 40 students who took the test. Find the
percentile for Henry's score.
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