The ages, x years, of 150 cars are summarised by x = 645 and x 2 =
Question:
The ages, x years, of 150 cars are summarised by Σx = 645 and Σx2 = 8287.5. Find (x – x̅)2, where x denotes the mean of x.
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To find the mean of the ages of the cars we can use the formula x x n where x is the sum ...View the full answer
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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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