Probability Rules and Addition Rules

Probability Rules and Addition Rules

12th Grade

10 Qs

quiz-placeholder

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Probability Rules and Addition Rules

Probability Rules and Addition Rules

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Anthony Clark

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The weather forecaster predicted it will be 4/5 chance of rain for Monday and 2/3 chance of rain for Tuesday. What is the probability it will rain both days?

1/2

20/15

8/15

6/8

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Given P(A) = .8 and P( B| A) = .3, find P( A and B).

2.6

.12

.24

.38

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

An event has a 1/4 chance of occurring. What is the chance of it not occurring?

3/4

1/4

Can't find with this information

.14

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Event A has a 1/2 chance of occurring, Event B has a 1/2 Chance of occurring and they have a 1/4 chance of happening at the same time. What is the probability of Event A or Event B happening?

1

1/2

1/4

3/4

Answer explanation

You use the Addition rule of Non-ME Events

P(A or B)=P(A)+P(B)-P(A and B)

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Two events are _________ if they cannot happen at the same time

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Event A has a 5% chance of occurring, what is the chance of it NOT occurring?

50%

95%

90%

15%

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

To find the probability of Event A OR Event B happening, what rule do we use?

Addition Rule

Multiplication Rule

Complement Rule

Subtraction Rule

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