# ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern): Questions 287 - 290 of 472

Access detailed explanations (illustrated with images and videos) to 472 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 300.00 or

How to register?

## Question number: 287

» Probability » Probability Distributions » Negative Binomial

Edit
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.

250

b.

900

c.

150

d.

All of the above

## Question number: 288

» Probability » Probability Distributions » Hypergeometric

Edit
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.

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

c.

Hypergeometric random variable has larger variance than binomial random variable.

d.

Question does not provide sufficient data or is vague

## Question number: 289

Edit
MCQ▾

### Question

Consider the college applicant who has determined that he has 0.80 probability of acceptance and that only 60 % of the accepted students will receive dormitory housing. Of the accepted students who receive dormitory housing, 80 % will have at least one roommate. What is the probability of being accepted and receiving dormitory housing and having no roommates?

### Choices

Choice (4)Response

a.

0.085

b.

0.096

c.

0.074

d.

0.088

## Question number: 290

» Probability » Probability Distributions » Hypergeometric

Edit
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.

0.238

b.

0.636

c.

0.827

d.

0.542

Developed by: