MCQs of Probability

Probability MCQs

Showing 71 to 73 out of 73 Questions

71.

The mean and variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is _____ .

(a)	$\frac{128}{256}$
(b)	$\frac{219}{256}$
(c)	$\frac{37}{256}$
(d)	$\frac{28}{256}$

72.

If two coins are tossed 5 times, then the probability of getting 5 heads and 5 tails is _____ .

(a)	$\frac{63}{256}$
(b)	$\frac{1}{1024}$
(c)	$\frac{2}{205}$
(d)	$\frac{9}{64}$

73.

Five horses are in a race, Mr. A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse is _____ .

(a)	$\frac{1}{5}$
(b)	$\frac{2}{5}$
(c)	$\frac{3}{5}$
(d)	$\frac{4}{5}$

Showing 71 to 73 out of 73 Questions