Question

if the mean of the data 12, 8,6, 3, 9 is 7.6.if 5 is added to each observation then the new mean is ​

Answer 1

Numbers = 12,8,6,3,9

12+5 = 17, 8+5=13, 6+5=11, 3+5=8, 9+5=14

Sum of observations=63

Mean=Sum of observations/no of observations=

63/5 = 12.6

Mean=12.6