Answers

2016-04-01T13:48:43+05:30
First 5 whole numbers are 0,1,2,3,4
sum of the observations , ∑xi = 0+1+2+3+4 = 10
no of observations , ∑fi = 5
mean = ∑xi / ∑fi  = 10/5 = 2

so the mean is 2
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2016-04-01T14:18:11+05:30
First 5 whole  numbers are 0,1,2,3,4
mean=0+1+2+3+4/5
mean=10/5
mean=2
0