thee workers' monthly salary follows a normal distribution. The avarage is $3,000 and the variance is 260,000. The Daily News has reported that the president of the rotary club eanrs $2,250 a month. Based on these numbers, if we look at all workers, what percentage have salaries that are at least as big as that?

thee workers' monthly salary follows a normal distribution. The avarage is $3,000 and the variance is 260,000. The Daily News has reported that the president of the rotary club eanrs $2,250 a month. Based on these numbers, if we look at all workers, what percentage have salaries that are at least as big as that?

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 6SGR

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Question

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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