The volumes of water, x 10 6 litres, needed to fill six Olympic sized pools are 2 82, 2 50, 2 75, 3 14, 3 66 and 3 07 a Find the value of (x 2) and of (x 2) 2 b Use your answers to part a to find the mean and the standard deviation of the volumes of water, giving both answers correct to the nearest...

a To find the value of x 2 and of x 22 we first need to f ...

The volumes of water, x 10 6 litres, needed to fill six Olympic-sized pools are 2.82, 2.50,

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The volumes of water, x ×10⁶ litres, needed to fill six Olympic-sized pools are 2.82, 2.50, 2.75, 3.14, 3.66 and 3.07.

a. Find the value of Σ(x − 2) and of Σ(x − 2)².

b. Use your answers to part a to find the mean and the standard deviation of the volumes of water, giving both answers correct to the nearest litre.

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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 01:56 AM

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The volumes of water, x 10 6 litres, needed to fill six Olympic-sized pools are 2.82, 2.50,

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

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