Question

answer this question guys plz hurry up

Answer 1

answer of your que is (b) because the equation is incerasing by .5

Answer 2

Given that Mean of 11 observations = 17.5.

Then the total number of observations = 11 * 17.5

                                                                  = 192.5.

Given that an observation 15 is deleted(i.e total number of 10 observations is:)

192.5 - 15 = 177.5.


Therefore the mean of 10 observations = 177.5/10

                                                                   = 17.75.


Hope this helps!