Answered: Slices of pizza for a certain brand of…

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

Slices of pizza for a certain brand of pizza have a mass that is approximately normally distributed with a mean of 66.1 grams and a standard deviation of 2.39 grams.

Round answers to three decimal places.

b) What is the probability of finding a random slice of pizza with a mass of less than 65.7 grams? _________

c) What is the probability of finding a 22 random slices of pizza with a mean mass of less than 65.7 grams? ______

d) What sample mean (for a sample of size 22) would represent the bottom 15% (the 15th percentile)? _____ grams

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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