MCQs of Some special Probability Distributions (Probability and Statistics - 3130006)

Probability and Statistics (3130006) MCQs

MCQs of Some special Probability Distributions

Showing 1 to 10 out of 35 Questions

In binomial distribution probability of success in each trial remains _______.

(a)	undefine
(b)	constant
(c)	zero
(d)	1

The mean of binomial distribution is _______.

(a)	nq
(b)	pq
(c)	np
(d)	none of the above

Standard deviation of binomial distribution is _________.

(a)	$\sqrt{np}$
(b)	$\sqrt{nq}$
(c)	$\sqrt{npq}$
(d)	$npq$

In binomial distribution each trial results in ______ possible outcomes.

(a)	one
(b)	two
(c)	three
(d)	four

20% Of the bulbs produced are defective. What is probability that at most 2 bulbs out of 4 bulbs are defective?

(a)	0.9728
(b)	0.5604
(c)	0.5556
(d)	none of the above

The average percentage of failure in a certain examination is 40. What is the probability that out of a group of 6 candidates, at least 4 passed in examination?

(a)	0.5443
(b)	0.5111
(c)	0.4552
(d)	none of the above

What is the probability that in a family of 4 children there will be at least 1 boy? (Assume that the probability of a male birth is 0.5.)

(a)	0.5362
(b)	0.9375
(c)	0.1501
(d)	none of the above

For the binomial distribution with n=20,p=0.35, Standard deviation is ________.

(a)	1.9853
(b)	2.1331
(c)	5.9568
(d)	none of the above

what is "n" for the binomial distribution for which mean is 10 and variance is 5?

(a)	10
(b)	20
(c)	30
(d)	40

10.

What is probability of getting a sum of 7 at least once in 3 tosses of a pair of dice?

(a)	$\frac{91}{216}$
(b)	$\frac{216}{91}$
(c)	$91 \times 216$
(d)	none of the above

Showing 1 to 10 out of 35 Questions