Assume that adults have IQ scores that are normally distributed with a mean ofμ=105and a standard deviationσ=15.Find the probability that a randomly selected adult has an IQ between90and120. Click to view page 1 of the table.LOADING...Click to view page 2 of the table.LOADING... Question content area bottomPart 1The probability that a randomly selected adult has an IQ between90and120isenter your response here.(Type an integer or decimal rounded to four decimal places as needed.)

given data normal distriutionμ= 105σ = 15P(90<x<120) = ?

Answered: Assume that adults have IQ scores that…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter9: Solving Quadratic Functions

Section: Chapter Questions

Problem 4CA

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Question content area bottom

Part 1

The probability that a randomly selected adult has an IQ between

and

120

enter your response here.

(Type an integer or decimal rounded to four decimal places as needed.)

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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