Question: Consider the following grouped sample data: Values Frequency 0 to under 2 4 2 to under 4 . 2 4 to under 6 .

Consider the following grouped sample data:

Values                         Frequency

0 to under 2 ……………        4

2 to under 4 …………….       2

4 to under 6 …………….       9

6 to under 8 ……………        7

a. Calculate the approximate mean of these sample data.

b. Calculate the approximate standard deviation of these sample data.

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