Download Aptitude Crack
img not found img not found

Exam Questions Papers - Engineering

Q1:

For a random variable x following the probability density function, p(x), shown in figure, the mean and the variance are respectively,

A 1/2 and 2/3

B 1 and 4/3

C 1 and 2/3

D 2 and 4/3

ANS:B - 1 and 4/3

The mean x is given by and the variance is