Conditional probability from a two-way table

Maths

Higher Probability (Conditional and Further Set Notation)

Find the difference between the students in year 7 and the students in year 8 for each club in the table.

Insert a final column and a final row and the add up the total for each column and for each row.

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?

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?

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?

There are 10 counters in a bag. 4 counters are green and 6 counters are blue. Two counters are selected at random. If you want to calculate the probability that both are green, what calculation should you do?

There are 10 counters in a bag. 4 counters are green and 6 counters are blue. Two counters are selected at random. Calculate the probability that you get one of each colour.

There are 10 counters in a bag. 4 counters are green and 6 counters are blue. Two counters are selected at random. Calculate the probability that you get at least one blue.

This lesson will be removed by end of Summer Term 2025.

Conditional probability from a two-way table

Lesson outcome

This lesson will be removed by end of Summer Term 2025.