Answered: Question 2a Let us suppose that…

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 2a

Let us suppose that each of the Moon’s weekly grocery amounts are Normally distributed, so that Mrs. Moon’s would be N($200, $34) and Mr. Moon’s would be N($150, $45). Their weekly grocery amounts are correlated with rho= -0.3

What would be the mean of their total weekly grocery shopping amount?

$195

$175

$234

$350

Question 2b

What would be the standard deviation of their total weekly grocery shopping amount?

$79

$64.02

$56.40

$47.57

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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