Determine the mean and the standard deviation

Assignment Help Mathematics

Reference no: EM131124094

1. When we compute the mean of a frequency distribution, why do we refer to this as an

estimated mean?

2. Determine the mean and the standard deviation of the following frequency distribution.

Class	Frequency
0 up to 5	2
5 up to 10	7
10 up to 15	12
15 up to 20	6
20 up to 25	3

Reference no: EM131124094

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