Question

4. If the mean of
(x, +x2, +x3, +...+16) + 2 x16/16
is 9, the mean of the last three observations
is
(a) 10 1/3
(b) 10 2/3
(c) 11 1/3
(d) 11 2/3​

Answer 1

Answer:

c-11 1/3 is the correct answer.