Question

find the mean of the first six multiples of 3.

Answer 1

=3+6+9+12+15+18/6
=63/6
=10.5(ans)

Answer 2

First six multiples are 3,6,9,12,15,18 the mean is sum/ no. of terms = 3+6+9+12+15+18/6
63/6= 10.5