Answered: Suppose that the amount of time that…

Elements Of Modern Algebra

8th Edition

ISBN:9781285463230

Author:Gilbert, Linda, Jimmie

Publisher:Gilbert, Linda, Jimmie

Chapter2: The Integers

Section2.7: Introduction To Coding Theory (optional)

Problem 8E: Suppose the probability of incorrectly transmitting a single bit is . Compute the probability of...

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Suppose that the amount of time that shoppers wait
in line to enter a store is normally distributed with a
mean of 70 mins and a standard deviation of 5 mins.
If 25 shoppers are randomly, find the probability
that their average wait time:
a) Below 71 mins
b) More than 68.5 mins
c) Between 69 mins and 72 mins

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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