In a certain town, 63% of homes have an internet connection. a. In a random sample of
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In a certain town, 63% of homes have an internet connection.
a. In a random sample of 20 homes in this town, find the probability that:
i. Exactly 15 have an internet connection
ii. Exactly nine do not have an internet connection.
b. Use a suitable approximation to find the probability that more than 65% of a random sample of 600 homes in this town have an internet connection.
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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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