Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

20. IQ is normally distributed with a mean of 125 and a standard deviation of 20. Suppose one individual is randomly chosen. Let X

image text in transcribed

20. IQ is normally distributed with a mean of 125 and a standard deviation of 20. Suppose one individual is randomly chosen. Let X = IQ of an individual. Define the distribution for X. (2 points) b. Find the probability that the person has an IQ greater than 140. Include a sketch of the graph, and write a probability statement. (7 points) MENSA is an organization whose members have the top 3% of all IQs. Find the minimum IQ needed to qualify for the MENSA organization. Sketch the graph, and write the probability statement. (7 points) d. The middle 55% of IQs fall between what two values? Sketch the graph and write the probability statement. (7 points)

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Elementary Linear Algebra with Applications

Authors: Howard Anton, Chris Rorres

9th edition

471669598, 978-0471669593

More Books

Students also viewed these Mathematics questions