The average amount of time it takes a college freshman to complete the Mason Basic Reasoning Test is 24.6 minutes. The standard deviation is 5.8 minutes. Assume these times are normally distributed.Choose one: The amount of time that a college freshman takes to complete this test is a continious random variable. The amount of time that a college freshman takes to complete this test is a discrete random variable.

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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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The average amount of time it takes a college freshman to complete the Mason Basic Reasoning Test is 24.6 minutes. The standard deviation is 5.8 minutes. Assume these times are normally distributed.

Choose one:

		The amount of time that a college freshman takes to complete this test is a continious random variable.
		The amount of time that a college freshman takes to complete this test is a discrete random variable.

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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