Suppose the people living in a city have a mean score of 44 and a standard deviation of 6 on a measure of concern about the environment Assume that these concern scores are normally distributed. Using the 50% -34% -14% figures, approximately what percentage of people have a score above 44, above 50, above 32, above 38 below 44, below 50, below 32, and below 38

Suppose the people living in a city have a mean score of 44 and a standard deviation of 6 on a measure of concern about the environment Assume that these concern scores are normally distributed. Using the 50% -34% -14% figures, approximately what percentage of people have a score above 44, above 50, above 32, above 38 below 44, below 50, below 32, and below 38

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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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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