# Question

The following relative frequency distribution was constructed from a sample of 50. Calculate the sample mean, the sample variance, and the sample standard deviation.

Class .... Relative Frequency

0 up to 2 ... 0.34

2 up to 4 ... 0.20

4 up to 6 ... 0.40

6 up to 8 .. 0.06

Class .... Relative Frequency

0 up to 2 ... 0.34

2 up to 4 ... 0.20

4 up to 6 ... 0.40

6 up to 8 .. 0.06

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