Probability - Aptitude MCQ Questions and Solutions with Explanations

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Each section contains 100 MCQs on Probability .

The successive trials are with replacement in

A) Geometric distribution B) Binomial distribution C) Hypergeometric distribution D) None of above

Discuss

Answer & Solution

Answer: Option B

Solution:

Binomial distribution

The mean, median and mode for binomial distribution will be equal when

A) p = 0.5 B) p < 0.5 C) p > 0.5 D) p = 1

Discuss

Answer & Solution

Answer: Option A

Solution:

p = 0.5

Hypergeometric distribution has parameters

A) 1 B) 2 C) 3 D) 4

Discuss

Answer & Solution

Answer: Option C

Solution:

Hypergeometric distribution has 3 parameters

Which of the following is not the property of binomial distribution

A) N is fixed B) Has two outcomes C) Trials are independent D) Probability of success varies from trial to trial

Discuss

Answer & Solution

Answer: Option D

Solution:

Probability of success varies from trial to trial

The distribution function F(X) is represented by

A) P(X) B) P(X = x) C) P(X > x) D) P(X ≤ x)

Discuss

Answer & Solution

Answer: Option D

Solution:

P(X ≤ x)

The probability function is always

A) Negative B) Non Negative C) Positive D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

Non Negative

Binomial distribution is symmetrical when

A) p = q B) p > q C) p < q D) np > npq

Discuss

Answer & Solution

Answer: Option A

Solution:

p = q

Probability of occurrence of an event lies between

A) 0 and 1 B) -1 and 0 C) -1 and 1 D) exactly 1

Discuss

Answer & Solution

Answer: Option A

Solution:

Probability of occurrence of an event lies between 0 and 1

A discrete probability distribution may be represented by

A) A table B) A graph C) A mathematical Equation D) All of these

Discuss

Answer & Solution

Answer: Option D

Solution:

All of these

In which distribution successive trials are without replacement

A) Poisson distribution B) Binomial distribution C) Geometric distribution D) Hypergeometric distribution

Discuss

Answer & Solution

Answer: Option D

Solution:

Hypergeometric distribution

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