Answered: Which of the following is the best…

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

Which of the following is the best illustration of how tails tend to occur in a normal distribution?

A. The probability of the average height of ten random women being within one inch of 64” is higher than the probability of one random woman having a height within one inch of 64”.

B. If you flip a coin 20 times, it is very unlikely that you will get no heads, or one or two heads, but it is possible and it does happen once in a while.

C. 68% percent of people have an IQ between 85 and 115.

D. Two different normal distributions can be compared by using z scores.

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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