KingMathProbability
Picking a ball at random from a bag.
🔍 Step 1 · Understand
First, look at a worked example
A bag holds 1 red ball and 4 blue balls. You pick a ball at random. What is the probability of picking a red ball, as a percentage?
💡 The tip : Probability = number of red balls ÷ total number of balls.
🤔 Find the answer in your head, then open the solution.
👀 See the solution✅ The solution
Answer: 20
1 ÷ 5 = 0.2, that is 20%.
🎯 Step 2 · Your turn!
10 questions. Take your time, and ask for a hint if you get stuck.