Probability-Discrete and Continuous Random Variables (ISS (Statistical Services) Statistics Paper I (New 2016 MCQ Pattern)): Questions 1 - 5 of 5

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Question number: 1

» Probability » Discrete and Continuous Random Variables

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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: 2

» Probability » Discrete and Continuous Random Variables

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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: 3

» Probability » Discrete and Continuous Random Variables

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Question

Z is the distance traveled by a randomly chosen business consultant last year. Is the random variable Z discrete or continuous?

Choices

Choice (4) Response

a.

Continuous

b.

Sometime discrete sometime continuous

c.

Can’t say anything

d.

Discrete

Question number: 4

» Probability » Discrete and Continuous Random Variables

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Question

Z is the number of reading sessions a randomly chosen public library offers in their literacy program for kids. Is the random variable Z discrete or continuous?

Choices

Choice (4) Response

a.

Can’t say anything

b.

Discrete

c.

Sometime discrete sometime continuous

d.

Continuous

Question number: 5

» Probability » Discrete and Continuous Random Variables

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MCQ▾

Question

Which of the following statement is Incorrect regarding a random variable?

Choices

Choice (4) Response

a.

A random variable can be discrete as well as continuous.

b.

The height or weight of a randomly chosen individual from a population is a continuous random variable.

c.

The volume of fuel consumed by a bus on its route is a continuous random variable.

d.

Question does not provide sufficient data or is vague

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