Mathematics (AS & A Level) · Oct / Nov 2025 · Paper 52 · Question 2
9709
As printed in the paper
The question as text
Kayla has a bag containing 3 red marbles, 1 blue marble and 2 green marbles. She selects one marble from the bag at random and does not replace it in the bag. She repeats this process until she obtains a green marble. The random variable X is the number of marbles that she needs to select until she obtains a green marble.
Read automatically from the paper; the printed page above is exact.
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2(a)[4]
2(b)[3]
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