Consider the following frequency distribution. Class .....Frequency 2 up to 4 ...20 4 up to 6 ...60

Question:

Consider the following frequency distribution.

Class .....Frequency

2 up to 4 ...20

4 up to 6 ...60

6 up to 8 ...80

8 up to 10 ....20


a. Calculate the population mean.

b. Calculate the population variance and the population standard deviation.


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