# Probability-Probability Distributions (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 62 - 66 of 109

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## Question number: 62

» Probability » Probability Distributions » Negative Binomial

MCQ▾

### Question

A standard, fair die is thrown until 5 sixes occur. Let denote the number of throws. Then variance of is ________.

### Choices

Choice (4) Response

a.

900

b.

150

c.

250

d.

All of the above

## Question number: 63

» Probability » Probability Distributions » Hypergeometric

MCQ▾

### Question

Which of the following statement is correct regarding Hyper geometric distribution?

### Choices

Choice (4) Response

a.

Each individual of a population can be characterized as a success (S) or failure (F).

b.

Hypergeometric random variable has larger variance than binomial random variable.

c.

The population or set to be sampled consists of infinite number of elements.

d.

Question does not provide sufficient data or is vague

## Question number: 64

» Probability » Probability Distributions » Hypergeometric

MCQ▾

### Question

An urn contain 20 balls out of which 8 are black and 12 are white. 5 balls are selected without replacement, then what is the probability that exactly 2 balls are white balls?

### Choices

Choice (4) Response

a.

0.542

b.

0.238

c.

0.636

d.

0.827

## Question number: 65

» Probability » Probability Distributions » Geometric

MCQ▾

### Question

If geometric distribution, then will have ________.

### Choices

Choice (4) Response

a.

Uncountable and possibly infinite number of possible values.

b.

Countable but possibly infinite number of possible values.

c.

Countable possibly finite number of possible values.

d.

Uncountable number of possible values.

## Question number: 66

» Probability » Probability Distributions » Cauchy

MCQ▾

### Question

The Student distribution with one degree of freedom has PDF________.

### Choices

Choice (4) Response

a.

b.

Standard Cauchy distribution

c.

Question does not provide sufficient data or is vague

d.

None of the above

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