Mathematics (AS & A Level) · Oct / Nov 2017 · Paper 62 · Question 4
9709
As printed in the paper
The question as text
A fair tetrahedral die has faces numbered 1, 2, 3, 4. A coin is biased so that the probability of showing a head when thrown is 1 3. The die is thrown once and the number n that it lands on is noted. The biased coin is then thrown n times. So, for example, if the die lands on 3, the coin is thrown 3 times.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
4(i)[3]
4(ii)[1]
4(iii)[3]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.