8. Here are the scores for a recent test in a Prob/Stat class. 90 90 80 80 70 100 75 90 70 80 Answer the following questions regarding this set of data. Median- 95 100 80 80 90 90 Mean 75 70 60 85 Mode - 95 100 100 90 90 85
8. Here are the scores for a recent test in a Prob/Stat class. 90 90 80 80 70 100 75 90 70 80 Answer the following questions regarding this set of data. Median- 95 100 80 80 90 90 Mean 75 70 60 85 Mode - 95 100 100 90 90 85
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:8. Here are the scores for a recent test in a Prob/Stat class.
90
90
100 75
95
80
Median-
75
80
80
90
70
70
Answer the following questions regarding this set of data.
100 80
90 90
Standard Deviation-
Mean=
70
80
Variance-
Mode -
How many scores are within 1 standard deviation of the mean?
60
85
How many scores are within 2 standard deviations of the mean?
Hint: Drawing the curve will help answer the last two questions!!!
95
90
100
90
100
85
9. Calculate the percentile of 65 in the following distribution:
43, 43, 44, 45, 45, 47, 48, 50, 53, 54, 55, 55, 57, 62, 64, 65, 65, 65, 65, 67, 69, 69, 70, 72, 75
Expert Solution

Step 1
Given that
The data are
90,90,95,100,80,80,75,80,70,60,95,100,100,100,75,80,90,90,90,70,70,80,85,90,90,95
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