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

The video tutorial explains a probability problem involving colored counters in a bag. It covers calculating the probability of selecting a red counter by ensuring all probabilities sum to one. It also demonstrates how to calculate the number of green counters using multiplication. The tutorial emphasizes the importance of practicing such standard probability questions, which frequently appear in GCSE exams.

What is the probability of taking a blue counter based on the information provided?

Explain why all probabilities in a probability table must add up to one.