Question

Answer This Question With Solution​

Answer 1

Answer:

1) 45

Step-by-step explanation:

no. of observation= 150

mean=x/150=26

let total =x =150*26= 3900

if we add 4 to each observation=150*4= 600

now total= x+600

if we multiplying 1.5 each observation then the total= 1.5*(x+600)

now mean= [1.5(x+600)]/150

[1.5(3900+600)]/150= 45