Year 9
Venn Diagram and probability
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Lesson details
Key learning points
- In this lesson, we will look at finding the probability of events happening from Venn diagrams. We will also briefly look at probability trees and how we can fill in a Venn diagram from the information on a probability tree.
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7 Questions
Q1.
B
C
D
Q2.
Simplify
A
B
D
Q3.
A
B
C
Q4.
1
2
4
Q5.
A
C
D
Q6.
A
B
C
Q7.
A
B
C
6 Questions
Q1.
Katie has a set of 20 cards numbered 1 to 20. She chooses a card at random. What is the probability that the card she chooses is a square number or a factor of 2?
1/20
12/20
2/20
Q2.
A
C
D
Q3.
A person is chosen at random. Find the probability that this person does not belong to a badminton club.
13/25
13/45
28/45
Q4.
A person is chosen at random. Find the probability that this person belongs to a tennis club but not a badminton club.
13/38
20/45
21/45
Q5.
Katie has a set of 15 cards numbered 1 to 15. She chooses a card at random. What is the probability that the card she chooses is an odd number or a square number?
10/15
11/15
2/15
Q6.
Simi has a set of 10 cards numbered 1 to 10. She chooses a card at random. What is the probability that the card she chooses is prime or even?
0
1/10
9/10