Question

The mean of the number 25,30,27,23and25 ?

Answer 1

Mean = 25+30+27+23+25 ÷ 5
=130÷5
=26

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Answer 2

mean = sum of obs./ no. of obs.

X = 25 +30 +27 + 23 + 25 / 5
= 100 / 5
= 20