Probability of Single Events
Two Way Tables
Venn Diagrams
Independent Events
100
A bag contains 12 red, 4 blue, 6 green and 13 yellow marbles.
What is the probability of selecting a blue marble? (leave your answer as a fraction)
4/35
100
How many people were surveyed?
90
100
Students were given a survey that asked if they like math class and if they like physics class. The results are shown below. How many students like both math and physics?
40
100
What does it mean for two events to be independent?
They do not affect each other.
P(A)*P(B)=P(AandB)
200
The results of rolling a single die 12 times are shown below.
What is the experimental probability of rolling a 3 or 4?
6/12
200
Determine the probability that someone packed lunch.
50/90
200
Students were given a survey that asked if they like math class and if they like physics class. The results are shown below. How many students like math?
70
200
What is the probability that someone eats breakfast?
52/90
300
Which is more likely?
A) The spinner will land on red or blue
B) The spinner will land on green or blue
B) The spinner will land on green or blue
300
Determine the probability that someone packed lunch or is a girl.
72/90
300
Students were given a survey that asked if they like math class and if they like physics class. The results are shown below. How many students do not like physics?
40
300
What is the probability that someone is 10-13?
54/90
400
The results of rolling a single die 12 times are shown below.
What is the experimental probability of rolling a 2?
1/12
400
Determine the probability that someone packed lunch given that they are a boy.
17/35
400
Students were given a survey that asked if they like math class and if they like physics class. The results are shown below. What does the number 10 represent in the context of this problem?
10 people do not like math or physics
400
What is the probability that someone eats breakfast and is age 10-13?
40/90
500
A bag contains 12 red, 4 blue, 6 green and 13 yellow marbles.
What is the probability of selecting a marble that is not red? (leave your answer as a fraction).
23/35
500
Determine the probability that someone packed lunch given that they are a girl.
33/55
500
Students were given a survey that asked if they like math class and if they like physics class. The results are shown below. How many students like math or physics?
90
500
Are the events "Eat Breakfast" and "age 10-13" independent? Show how you know.
No.
P(A)*P(B) = 0.347
P(A and B) = 0.444