Question

64. The mean of five numbers is 18. If
one number is excluded, then their
mean is 16. The excluded number
is :
(a) 25
(b) 26
(c) 27
(d) 30
​

Answer 1

Answer:

26

Step-by-step explanation:

the mean of 5 numbers=18

mean=sum of observations/no of observations

=x/5=18

transpose 5 to R.H.S

x=5*18

x=90

if one no. is excluded

then x/4=16

x=4*16

x=64

now, 90-64=26

excluded number is 26

HOPE ITS HELPFUL!!!!!!!!!!