Question

Please help

Answer 1

The mean of the frequency distribution is 6.0 .

In mathematics and statistics, the arithmetic mean or arithmetic average is referred to as the sum of a set of numbers divided by the total number of numbers in the set.

The formula to calculate mean is,

Mean = sum of all observations / total number of observations

x = 4     5    6    7    8  

f = 12     1     8   18   4      

∑f = 12 + 1 + 8 + 18 + 4 = 43

fx = 48    5    48   126    32  

∑fx = 48 + 5 + 48 + 126 + 32 = 259

Mean = ∑fx /  ∑f

Mean = 259 / 43

Mean = 6.02

Mean = 6.0 ( After Round Off )

So, we can conclude that the mean of the frequency distribution is 6.0 .

To know more about Mean refer to the link:

brainly.com/question/1136789

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