The totals x 2 = 7931, x = 397 and y = 499 are given by 29
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The totals Σx2 = 7931, Σx = 397 and Σy = 499 are given by 29 values of x and n values of y. All the values of x and y together have a variance of 52.
a. Express y2 in terms of n.
b. Find the value of n for which y2 − x2 = 10.
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a y2 n4992 b n 7931 3972 104992 Explanation a To find ...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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