The weights of a bag of cement admixture produced by a company is approximately normally distributed with a mean of 9.0 kilograms and a variance of 0.64 kilogram. If measurements are recorded to the nearest tenth of a kilogram, find the proportion of these bags with weights (a) of at most 8.4 kilograms; (b) between 7.1 and 9.2 kilograms inclusive. (With continuity correction)
The weights of a bag of cement admixture produced by a company is approximately normally distributed with a mean of 9.0 kilograms and a variance of 0.64 kilogram. If measurements are recorded to the nearest tenth of a kilogram, find the proportion of these bags with weights (a) of at most 8.4 kilograms; (b) between 7.1 and 9.2 kilograms inclusive. (With continuity correction)
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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The weights of a bag of cement admixture produced by a company is approximately normally
distributed with a mean of 9.0 kilograms and a variance of 0.64 kilogram. If measurements are
recorded to the nearest tenth of a kilogram, find the proportion of these bags with weights
(a) of at most 8.4 kilograms;
(b) between 7.1 and 9.2 kilograms inclusive.
(With continuity correction)
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