GCSE Secondary Maths Age 13-17 - Probability & Statistics: More Probability - Explained

The video tutorial explains how to calculate the number of red counters in a bag given the probabilities of selecting different colored counters. It covers the calculation of probabilities for red and white counters, determining the total number of counters, and finding the number of red counters. Additionally, it explains why there must be an even number of marbles in a box when the probability of selecting a silver marble is 0.5.

What is the probability of selecting a yellow counter from the bag?

What is the relationship between the probabilities of selecting red and white counters?

Explain why there must be an even number of marbles in the box if the probability of selecting a silver marble is 0.5.