Approximate the mean of the frequency distribution for the ages of the residents of a town. Age Frequency   ​0-9 20   ​10-19 37   ​20-29 22   ​30-39 24   ​40-49 31   ​50-59 48   ​60-69 35   ​70-79 14   ​80-89 3   The approximate mean age is=  years. ​(Round to one decimal place as​ needed.)

MATLAB: An Introduction with Applications
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Approximate the mean of the frequency distribution for the ages of the residents of a town.

Age
Frequency
 
​0-9
20
 
​10-19
37
 
​20-29
22
 
​30-39
24
 
​40-49
31
 
​50-59
48
 
​60-69
35
 
​70-79
14
 
​80-89
3

 

The approximate mean age is=  years.
​(Round to one decimal place as​ needed.)
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