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?
Probability Rules and Addition Rules

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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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