Question

1. The ten test marks of two students are compared: Alex 75 59 58 72 80 66 71 79 68 55 George 90 83 55 84 72 63 50 65 52 91 a. Calculate the mean and standard deviation for each student. [4] b. What percent of each student's mark falls within one standard deviation of the mean? [1] c. What mark would be two standard deviation above the mean for George? [1]

          1. The ten test marks of two students are compared:
Alex
75
59
58
72
80
66
71
79
68
55
George
90
83
55
84
72
63
50
65
52
91
a. Calculate the mean and standard deviation for each student.
[4]
b. What percent of each student's mark falls within one standard deviation of the
mean?
[1]
c. What mark would be two standard deviation above the mean for George? [1]

1. The ten test marks of two students are compared:
Alex
75
59
58
72
80
66
71
79
68
55
George
90
83
55
84
72
63
50
65
52
91
a. Calculate the mean and standard deviation for each student.
[4]
b. What percent of each student's mark falls within one standard deviation of the
mean?
[1]
c. What mark would be two standard deviation above the mean for George? [1]

Added by Sharon L.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Wei Zhang

01/28/2022

Step 1

Step 1: Calculate the mean and standard deviation for each student. Show more…

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1. The ten test marks of two students are compared: Alex 75 59 58 72 80 66 George 90 83 55 84 72 63 71 50 79 65 68 52 55 91 a. Calculate the mean and standard deviation for each student. [4] b. What percent of each student's mark falls within one standard deviation of the mean? [1] c. What mark would be two standard deviation above the mean for George? [1]