The mass of waste produced by a school during its three 13-week terms is given in tonnes,

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The mass of waste produced by a school during its three 13-week terms is given in tonnes, correct to 2 decimal places, in the following table.

a. Calculate estimates of the mean and standard deviation of the mass of waste produced per week, giving both answers correct to 2 decimal places

b. No waste is produced in the 13 weeks of the year that the school is closed. If this additional data is included in the calculations, what effect does it have on the mean and on the standard deviation?

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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 02:03 AM

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The mass of waste produced by a school during its three 13-week terms is given in tonnes,

Question:

Mass of waste (tonnes) 0.15-0.29 0.30-0.86 0.87-1.35 1.36-2.00 No. weeks (f) 20

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a To calculate the estimates of the mean and standard deviation of the mass of waste produced per we...View the full answer

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

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