Twenty readings of y are summarised by the totals (y 5) 2 890 and (y 5) 130 Find the standard deviation of y ...

The formula for the sample standard deviation of a set of data is s sqr ...

Twenty readings of y are summarised by the totals (y 5) 2 = 890 and (y

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Twenty readings of y are summarised by the totals Σ(y − 5)² = 890 and Σ(y − 5) = 130. Find the standard deviation of y.

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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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Twenty values of x are summarised by (x 1) 2 = 132 and (x 1) = 44. Eighty values of y are summarised by (y +1) 2 = 17 704 and (y +1) = 1184. a. Show that x = 64 and that x 2 = 240. b. Calculate the...
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Twenty readings of y are summarised by the totals (y 5) 2 = 890 and (y

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

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