Question

If (1,2,4,6,8,16) is a sample of five observations selected at random from a population, then the mean is

Answer 1

Mean = 1+2+4+6+8+16/5
= 21/5
= 4.2
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Answer 2

mean = sum of all observations/ total no. of observations.
so here mean = (1+2+4+6+8+16)/6
=37/6
6.16