6th Edition

ISBN: 9780321922205

Author: Bennett

Publisher: PEARSON CO

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Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could co…

Normal Distribution

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Textbook Question

Chapter 6.C, Problem 25E

Psychology Exam. The scores on a psychology exam were normally distributed with a mean of 67 and a standard deviation of 8.

25. What is the standard score for an exam score of 67?

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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Chapter 6.C, Problem 24E

Chapter 6.C, Problem 26E

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Chapter 6 Solutions

EP USING+UNDERSTANDING MATH.-MYMATHLAB

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