Question

mean of 8 boys are 12 yrs if the oldest one is removed that is 16 yrs find the mean of rest


pls do it fast​

Answer 1

Answer:

16-12 = 4 jejejiejekdj

Step-by-step explanation:

take it

Answer 2

Answer:

80/7

Step-by-step explanation:

given:-

let sum of all observations be x,

mean of 8 boys = 12

mean = (Sum of all observations)/(total number of observations)

mean = x/8

12 = x/8

x = 12×8 = 96

x = 96

ATQ,

if oldest one removed of 16 years old,

x - 16 = 96-16 = 80

mean = 80/7