(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For this set of data find the mean and standard deviation

Temp.....# of days

90-94.....1

85-89.....3

80-84.....6

75-79.....12

70-74.....7

65-69.....1

2. The attempt at a solution

I don't know how to find the mean or standard deviation when the data is divided into ranges like this.

Can this be solved on the calculator?

Any help is appreciated.

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# Homework Help: Mean and standard deviation

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