Answered: Mike Mochado is the head barrista at…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter2: Systems Of Linear Equations

Section2.4: Applications

Problem 3EQ: A florist offers three sizes of flower arrangements containing roses, daisies, and chrysanthemums....

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Mike Mochado is the head barrista at John's Java & Jerk, a local cafe serving coffee, cold beverages, and food items with a Carribbean flair. Mike's big concern at the moment is deciding how many pounds of coffee beans he'll need for the week. The guy from corporate told Mike to assume that coffee bean usage is normally distributed. On the basis of the cafe's first 20 weeks of operation, Mike has determined that his average weekly coffee bean usage is 153.75 pounds, with a standard deviation of 55.35 pounds.

How many pounds of coffee beans should Mike have on hand to be 95.9 % sure that he'll have enough beans?

F−1(0.959)=F−1(0.959)=

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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