Mathematics (AS & A Level) · Oct / Nov 2020 · Paper 62 · Question 6
9709
As printed in the paper
The question as text
A biscuit manufacturer claims that, on average, 1 in 3 packets of biscuits contain a prize offer. Gerry suspects that the proportion of packets containing the prize offer is less than 1 in 3. In order to test the manufacturer’s claim, he buys 20 randomly selected packets. He finds that exactly 2 of these packets contain the prize offer.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(a)[5]
6(b)[3]
6(c)[1]
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