A-LevelMathematicsProbability and statisticsFeb/Mar 2022Paper 5 Q15 Marks
A fair red spinner has edges numbered 1, 2, 2, 3. A fair blue spinner has edges numbered -3, -2, -1, -1. Each spinner is spun once and the number on the edge on which each spinner lands is noted. The random variable X denotes the sum of the resulting two numbers.
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