Probability-Probability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1 - 4 of 108

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Question number: 1

» Probability » Probability Distributions » Exponential

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Question

Suppose that has the exponential distribution with rate parameter . Then which of the following statement is/are correct regarding it?

Choices

Choice (4) Response

a.

has the geometric distributions on with success parameter .

b.

has the geometric distributions on with success parameter .

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Question number: 2

» Probability » Probability Distributions » Negative Binomial

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Question

Which of the following statement is/are correct?

Choices

Choice (4) Response

a.

Pascal distribution is a special case of negative binomial distribution on with parameter and , when k is a positive integer.

b.

Pascal distribution is a special case of Normal distribution with parameter , when

c.

The pdf of Pascal distribution is symmetric.

d.

All of the above

Question number: 3

» Probability » Probability Distributions » Uniform

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If , then what will be the standard deviation of ?

Choices

Choice (4) Response

a.

59.8

b.

261.2

c.

161.4

d.

120.5

Question number: 4

» Probability » Probability Distributions » Bernoulli

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Question

Which of the following is skewness of a standardized Bernoulli distributed random variable which takes the value 1 with success probability of and the value 0 with failure probability of ?

Choices

Choice (4) Response

a.

b.

c.

d.

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