Random Variables and mathematical expectations

Random Variables and mathematical expectations

12th Grade

10 Qs

quiz-placeholder

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Random Variables and mathematical expectations

Random Variables and mathematical expectations

Assessment

Quiz

Mathematics

12th Grade

Practice Problem

Hard

Created by

Anitha T

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Probability which explains x is equal to or less than particular value is classified as

Cumulative Probability

Continuous Probability

Marginal Probability

Discrete Probability

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A variable that can assume any possible value between two points is called

Discrete random variable

Discrete Sample Space

Continuous random variable

Random Variable

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If c is constant ,then E(c) is

1

c f (c)

0

c

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

E[X-E(X)] is equal to

V(X)

0

E(X)-X

E(X)

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the random variable takes negative values ,then the negative values will have

negative Probabilities

Constant Probabilities

Positive Probabilities

Difficult to tell

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

A Discrete probability distribution may be represented by

Table

Mathematical Equation

Graph

7.

FILL IN THE BLANK QUESTION

45 sec • 1 pt

In a discrete probability distribution the sum of all the Probabilities is always equal to

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