In Restaurant Bijoux 13% of customers rated the food as poor, 22% of customers rated the food
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In Restaurant Bijoux 13% of customers rated the food as ‘poor’, 22% of customers rated the food as ‘satisfactory’ and 65% rated it as ‘good’. A random sample of 12 customers who went for a meal at Restaurant Bijoux was taken.
i. Find the probability that more than 2 and fewer than 12 of them rated the food as ‘good’. On a separate occasion, a random sample of n customers who went for a meal at the restaurant was taken.
ii. Find the smallest value of n for which the probability that at least 1 person will rate the food as ‘poor’ is greater than 0.95.
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Related Book For
Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook
ISBN: 9781108407304
1st Edition
Authors: Dean Chalmers, Julian Gilbey
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