Students at a school took a 35-point exam.  Below is a random sample of exam scores. 25        35        22        19        25        31        21        27        10        22   a) Create a grouped frequency distribution with a class width of 6.  Include a title, class limits, class boundaries, and midpoints b) Again using the grouped frequency distribution, find the mean and standard deviation of the data.  How do these values compare to the mean and standard deviation for the original data?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
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Students at a school took a 35-point exam.  Below is a random sample of exam scores.

25        35        22        19        25        31        21        27        10        22

 

a) Create a grouped frequency distribution with a class width of 6.  Include a title, class limits, class boundaries, and midpoints

b) Again using the grouped frequency distribution, find the mean and standard deviation of the data.  How do these values compare to the mean and standard deviation for the original data?

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