Mathematics (AS & A Level) · May / June 2018 · Paper 72 · Question 7
9709
As printed in the paper
The question as text
A ten-sided spinner has edges numbered 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Sanjeev claims that the spinner is biased so that it lands on the 10 more often than it would if it were unbiased. In an experiment, the spinner landed on the 10 in 3 out of 9 spins.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
7(i)[5]
7(ii)[1]
7(iii)[6]
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