Question

Find the mean of numbers x, x+2, x+4, x+6, x+8.

Answer 1

Mean = (Sum of observations)/(Number of observations)

        = (x + x + 2 + x + 4 + x + 6 + x + 8)/5

        = (5x + 20) / 5

        = 5(x + 4)/5

        = (x + 4)

Hence the mean of given observations is (x + 4).

Answer 2

Step-by-step explanation:

mean=sum of observation/total number of observation

=(x+x+2+x+4+x+6+x+8)/5

= (5x+20)/5

=(5(x+4))/5

=x+4

Hope it will help you!