A population of values has a normal distribution with �=138 and �=31.6.Find the probability that a single randomly selected value is between 133.2 and 135.7. Round your answer to four decimal places.�(133.2<�<135.7)= Find the probability that a randomly selected sample of size �=229 has a mean between 133.2 and 135.7. Round your answer to four decimal places. �(133.2<�<135.7)=

The objective of the question is to find the probability of a single randomly selected value and a…

Answered: A population of values has a normal…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 24SGR

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A population of values has a normal distribution with �=138 and �=31.6.

Find the probability that a single randomly selected value is between 133.2 and 135.7. Round your answer to four decimal places.
�(133.2<�<135.7)=
Find the probability that a randomly selected sample of size �=229 has a mean between 133.2 and 135.7. Round your answer to four decimal places.
�(133.2<�<135.7)=

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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