he distribution of annual incomes for a group of supervisors in a certain region has a normal distribution with a mean of $56,500 and a standard deviation of $1,200. About 95% of the incomes will lie between blank1 - Numeric Answer and blank2 - Numeric Answer

he distribution of annual incomes for a group of supervisors in a certain region has a normal distribution with a mean of $56,500 and a standard deviation of $1,200. About 95% of the incomes will lie between blank1 - Numeric Answer and blank2 - Numeric Answer

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 19PFA

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blank1 - Numeric Answer

and

blank2 - Numeric Answer

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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