ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 308 - 310 of 471

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Question number: 308

» Probability » Probability Distributions » Gamma

MCQ▾

Question

Which of the following statements is/are correct regarding Gamma distribution with parameters?

Choices

Choice (4) Response

a.

If represents identically distributed, independent gamma random variables with parameters and , then if ,

b.

If represents identically distributed, independent gamma random variables with parameters and , then also have a gamma distribution with parameters and .

c.

If the gamma density function is reduced to the exponential density function.

d.

All a. , b. and c. are correct

Question number: 309

» Probability » Probability Distributions » Beta

MCQ▾

Question

For a standard Beta distribution having pdf , with parameter , which of the following statements is/are correct?

Choices

Choice (4) Response

a.

If is increasing with

b.

If is decreasing with mode at

c.

If is increasing with mode at

d.

All a. , b. and c. are correct

Question number: 310

» Probability » Probability Distributions » Conditional Distributions

MCQ▾

Question

Suppose that the joint density of and is

and zero otherwise. Which of the following is equal to

Choices

Choice (4) Response

a.

b.

c.

d.

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