Expected Value Discrete

Expected Value Discrete

11th Grade

10 Qs

quiz-placeholder

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Expected Value Discrete

Expected Value Discrete

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Barbara White

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A discrete random variable X has the probability distributions shown in the table. Find the value of k.

1/3

7/12

1/12

1/4

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

The random variable X has a probability function shown. Find the value of k.

0.1

0.01

10

1/9

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A discrete random variable has a probability distribution shown in the table. Find the value of a.

0.25

0.75

0.5

0.125

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A discrete random variable X has the probability distribution shown in the table. Find P(1 < X ≤ 3).

7/8

1/2

5/8

3/8

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A discrete random variable X has the probability distribution shown in the table. Find P(X < 2).

7/8

1/2

5/8

3/8

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

A discrete random variable X has the probability distribution shown in the table. Find P(X > 3).

1

7/8

1/8

0

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Given the probability model in the table below, what is the expected value of the random variable?
  X        50          20        5
P(X)     0.1         0.3      0.6
14
4.67
5
7.5

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