# Probability (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 5 - 9 of 199

Access detailed explanations (illustrated with images and videos) to 472 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 300.00 or

How to register?

## Question number: 5

» Probability » Discrete and Continuous Random Variables

Edit
MCQ▾

### Question

Which of the following cannot be the example of exponential random variable?

### Choices

Choice (4) Response

a.

The distance we travel along a road until we find the next pothole.

b.

Number of pizza a person eats in a month.

c.

The time until the next jobs arrives at a database server.

d.

All of the above

## Question number: 6

» Probability » Discrete and Continuous Random Variables

Edit
MCQ▾

### Question

A randomly chosen child repeatedly hits a bell. X is the length of time it takes to break it open. Is the random variable X discrete or continuous?

### Choices

Choice (4) Response

a.

Discrete

b.

Sometime discrete sometime continuous

c.

Can’t say anything.

d.

Continuous

## Question number: 7

» Probability » Probability Distributions » Uniform

Edit
MCQ▾

### Question

If , then what will be the standard deviation of ?

### Choices

Choice (4) Response

a.

59.8

b.

261.2

c.

161.4

d.

120.5

## Question number: 8

» Probability » Probability Distributions » Bernoulli

Edit
MCQ▾

### Question

Which of the following is skewness of a standardized Bernoulli distributed random variable which takes the value 1 with success probability of and the value 0 with failure probability of ?

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 9

» Probability » Probability Distributions » Exponential

Edit
MCQ▾

### Question

The moment generating function of an exponential random variable X with parameter λ (for t < 1/ λ) is:

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Developed by: