A calculated estimate of the mean capacity of 120 refrigerators stored at a warehouse is 348 litres.

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A calculated estimate of the mean capacity of 120 refrigerators stored at a warehouse is 348 litres. The capacities are given in the following table.

A delivery of n new refrigerators, all with capacities between 200 and 320 litres arrives at the warehouse. This causes the mean capacity to decrease by 8 litres. Find the value of n and state what assumptions you are making in your calculations.

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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 10, 2021 03:16 AM

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A calculated estimate of the mean capacity of 120 refrigerators stored at a warehouse is 348 litres.

Question:

Capacity (li 160- 200- 320- 400-p tors (f) 12 28 48 32

Step by Step Answer:

Lets first calculate the sum of capacities of the 120 refrigerators stored at the warehouse Sum of c...View the full answer

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

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