Consider the following grouped sample data: Values Frequency 5 to under 10 15 10 to under
Question:
Consider the following grouped sample data:
Values Frequency
5 to under 10 …………… 15
10 to under 15 …………. 9
15 to under 20 ………… 21
20 to under 25 ………… 24
25 to under 30 ……….. 6
a. Calculate the approximate mean of these sample data.
b. Calculate the approximate standard deviation of these sample data.
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