Find the mean of the frequency distribution with classes

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The following table contains data on the number of years of service of a SRS of 26 NY State Troopers. 

Years of Service Freq,f

6-7 3

8-9 10

10-11 6

12-13 6

14-15 1

Find the mean of the frequency distribution with classes. Round your answer to the nearest tenth.

Reference no: EM132049666

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