The following is a frequency distribution of grades of a sample of statistics examinations.
Grade
Frequency
50 - 59
7
60 - 69
10
70 - 79
22
80 - 89
15
90 - 99
6
Compute the following measures:
a.The meanb.The variancec.The standard deviationd.The coefficient of variation
What will be an ideal response?
| a. | 75 |
| b. | 130.25 |
| c. | 11.41 |
| d. | 15.22% |
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Answer the following statement true (T) or false (F)
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Answer the following statement true (T) or false (F)
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