What is the variance and standard deviation for the number of times the SAT is taken?
What is the variance and standard deviation for the number of times the SAT is taken?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 22PPS
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The number of students taking the Scholastic Aptitude Test (SAT) has risen to an all-time high of more than 1.5 million (College Board, August 26, 2008). Students are allowed to repeat the test in hopes of improving the score that is sent to college and university admission offices. The number of times the SAT was taken and the number of students are as follows. |
|||||
Number of Times | Number of Students | ||||
1 | 721,769 | ||||
2 | 601,325 | ||||
3 | 166,736 | ||||
4 | 22,299 | ||||
5 | 6,730 | ||||
What is the variance and standard deviation for the number of times the SAT is taken? |
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