# Probability from a venn diagram using further set notation (2 sets)

## Lesson details

### Key learning points

1. In this lesson, we will interpret Venn diagrams with two sets and find probabilities, including conditional probabilities from them, using the correct set notation.

### Licence

This content is made available by Oak National Academy Limited and its partners and licensed under Oak’s terms & conditions (Collection 1), except where otherwise stated.

## Video

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## Worksheet

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## Starter quiz

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### 3 Questions

Q1.
The two-way table shows information about year 7 and 8 students and their participation in some school clubs. How do you find the total number of students?
Find the difference between the students in year 7 and the students in year 8 for each club in the table.
Correct answer: Insert a final column and a final row and the add up the total for each column and for each row.
Multiply all the numbers in each row.
Q2.
The two-way table shows information about year 7 and 8 students and their participation in some school clubs. What is the probability that two students picked at random attend debate club?
A
C
Q3.
The two-way table shows information about year 7 and 8 students and their participation in some school clubs. What is the probability that two students picked at random attend chess club and one is in year 7 and the other in year 8?
A
B

## Exit quiz

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### 3 Questions

Q1.
Use Venn diagram to calculate P(A’∪ B’)
B
C
Q2.
Use Venn diagram to calculate P(A ∩ B | B)
A
B