Answered: ) What percentage of weeks will sales…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

The weight of topsoil sold in a week is normally distributed with a mean of 1200 tons and a standard deviation of 48 tons.

(a) What percentage of weeks will sales exceed 1296 tons? (Round your answer to two decimal places.)
%

(b) What percentage of weeks will sales be less than 1104 tons? (Round your answer to two decimal places.)
%

(c) What percentage of weeks will sales be between 1128 and 1248 tons? (Round your answer to two decimal places.)
%

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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