Mathematics (AS & A Level) · Oct / Nov 2021 · Paper 51 · Question 1
9709
As printed in the paper
The question as text
Two fair coins are thrown at the same time. The random variable X is the number of throws of the two coins required to obtain two tails at the same time.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
1(a)[2]
1(b)[2]
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