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

The video tutorial explains how to calculate probabilities for different colored counters in a bag. It starts by introducing the problem and the given probabilities for blue and yellow counters. The tutorial then calculates the probabilities for red and white counters, using the information that the probability of red is twice that of white. It determines the total number of counters in the bag and calculates the number of red counters. Finally, 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.

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