Products A and B have the same daily demand distribution; Normal with mean 200 and standard deviation of 20. The correlation coefficient between their demands is -.7. If we pool the demands for A and B, the mean and standard deviation of (daily) pooled demand distribution would be, respectively, a) 282.8427 and 28.2843 b) 282.8427 and 15.4919 c) 400 and 15.4919 d) 400 and 28.2843

Products A and B have the same daily demand distribution; Normal with mean 200 and standard deviation of 20. The correlation coefficient between their demands is -.7. If we pool the demands for A and B, the mean and standard deviation of (daily) pooled demand distribution would be, respectively, a) 282.8427 and 28.2843 b) 282.8427 and 15.4919 c) 400 and 15.4919 d) 400 and 28.2843

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

a) 282.8427 and 28.2843

b) 282.8427 and 15.4919

c) 400 and 15.4919

d) 400 and 28.2843

Definition Definition Statistical measure used to assess the strength and direction of relationships between two variables. Correlation coefficients range between -1 and 1. A coefficient value of 0 indicates that there is no relationship between the variables, whereas a -1 or 1 indicates that there is a perfect negative or positive correlation.

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