ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 313 - 318 of 472

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Question number: 313

» Probability » Probability Distributions » Lognormal

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Question

Using the method of moment estimation, find the estimators and of parameters of if .

Choices

Choice (4)Response

a.

and

b.

and

c.

and

d.

None of the above

Question number: 314

» Probability » Probability Distributions » Random Vectors

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Question

What is the distribution function of a random variable which have following density function?

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Question number: 315

» Probability » Probability Distributions » Beta

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MCQ▾

Question

If then has ________ distribution

Choices

Choice (4)Response

a.

Uniform

b.

Normal

c.

Cauchy

d.

None of the above

Question number: 316

» Probability » Modes of Convergences of Sequences of Random Variables » With Probability One

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Question

If as with probability 1 then,

Choices

Choice (4)Response

a.

as in r-th mean.

b.

as almost everywhere.

c.

as in probability.

d.

None of the above

Question number: 317

» Probability » Probability Distributions » Joint and Marginal Distributions

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Question

The cumulative distribution function for the joint distribution of the continuous random variables and is . What is the value of

Choices

Choice (4)Response

a.

4.1

b.

3.2

c.

0.9

d.

None of the above

Question number: 318

» Probability » Probability Distributions » Gamma

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Question

Which of the following property is/are satisfied by a standard Gamma distribution with shape parameter ?

Choices

Choice (4)Response

a.

If , is concave upward.

b.

If , is decreasing with as .

c.

If , is concave downward and then upward, with inflection point at .

d.

All a. , b. and c. are correct

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