Question

the mean of 1, 7, 5, 3, 4 and 4 is M.The observation 3, 2, 4, 2, 3, 3 and P have mean (M - 1) and medium Q.Find P and Q​.

Answer 1

(1+7+5+3+4+4)÷6 =4 = M

(3+2+4+2+3+3+p) ÷ 7 = M - 1

(17+p)÷ 7 = 4 -1

(17 + p )÷ 7 = 3

(17 + p) = 21

p = 4

order--- 2 ; 2 ; 3 ; 3 ; 3 ; 4 ; 4

median Q=3

so p=4; Q=3