IAT-1(part -B)- PQT

. THE VARIANCE OF THE RANDOM VARIABLE X WHICH FOLLOWS UNIFORM DISTRIBUTION (6,12) IS

• 1

• 2

• 3

• 4

The first four moments of a distribution about x = 4 are 1, 4, 10, 45. the mean is

• 3

• 5

• 0

• 4

A R.V X has a uniform distribution over (-3,3), then P(X < 2) is

• 1/3

• 5/6

• 1/6

• 2/6

If X follows binomial with the parameter (3,1/3) and Y follow binomial with the parameter (5,1/3). Then the mean of X+Y is

• 6/3

• 7/3

• 8/3

• 1/3

A R.V X has a uniform distribution over (0,3),then P(X<2).

• 2/3

• 5/3

• 3/4

• 4/3

Let X be a random variable with Var[X] = 1. Find Var (2-3X).

• 8

• 9

• 7

• 6

Let X be a random variable with E[X] = 1. Find E (2-3X).

• 2

• -1

• 3

• -2

The first four moments of a distribution about x = 4 are 1, 4, 10, 45. Find the Variance

• 3

• 5

• 0

• 4

A die is cast untill 6 appear. The probability of getting the success at 3rd attempt is

• 10/216

• 25/216

• 15/216

• 11/216

If X is the random variable with mean 3 and variance 4. Then X follow Binomial distribution.

• True

• False