Lesson: Conditional Probability: Two-Way Tables Mathematics
In this lesson, we will learn how to deal with the concept of conditional probability using joint frequencies presented in two-way tables.
Sample Question Videos
The two-way table shows the ages and activity choices of a group of participants at a summer camp.
A child is selected at random. Given that they chose rappelling, find the probability that the child is over 14.
Ethan and Elizabeth are running for the presidency of the Students’ Union at their school. The votes they received from each of 3 classes are shown in the table. What is the probability that a student voted for Elizabeth given that they are in the Class B?
The two-way table shows the ages and activity choices of a group of children at a summer camp.
A child is selected at random. Given that this child is over 14, find the probability, to the nearest percent, that they chose climbing.