A building is occupied by n companies. The number of people employed by these companies is denoted

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A building is occupied by n companies. The number of people employed by these companies is denoted by x. Find the mean number of employees, given that Σx² = 8900, Σx = 220 and that the standard deviation of x is 18.

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 01:55 AM

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A building is occupied by n companies. The number of people employed by these companies is denoted

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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