Question

# The mean of the following distribution is: xi10131619fi2576

Your Answer
A

15.2

Your Answer
B

15.35

Correct Answer
C

15.55

Your Answer
D

16

Solution

## The correct option is C 15.55 Average or mean value of a given number of observations is the sum of all the observations divided by the total number of observations.  xi10131619fi2576xifi2065112114 mean=∑xifi∑fi ∑xifi=20+65+112+114=311    ∑fi=20 Hence,  mean=∑xifi∑fi=31120=15.55

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