ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 320 - 322 of 461

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Question number: 320

» Probability » Probability Distributions » Beta

MCQ▾

Question

A company produces bulbs that have a probability of being defective. The manufacturer does not know , but from past experience he expects this probability to be equal to . Furthermore, he quantifies his uncertainty about by attaching a standard deviation of to his estimate. After consulting with an expert in statistics, the manufacturer decides to use a Beta distribution to model her uncertainty about . What values of parameter will he use for making his assumptions true?

Choices

Choice (4) Response

a.

b.

α=2.59, β=49.21

c.

d.

Question does not provide sufficient data or is vague

Question number: 321

» Probability » Modes of Convergences of Sequences of Random Variables » In Mean Square

MCQ▾

Question

If in mean, then ________.

Choices

Choice (4) Response

a.

almost everywhere

b.

in distribution.

c.

in probability.

d.

Both b. and c. are correct

Question number: 322

» Probability » Probability Distributions » Beta

MCQ▾

Question

Suppose Suppose is a random variable such that the conditional distribution of given is negative binomial with stopping parameter and success parameter . Then conditional distribution given follows ________.

Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

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