Question: IQR for normal distribution For a normally distributed random variable, the IQR is a. twice the standard deviation b. less than twice the standard deviation

IQR for normal distribution For a normally distributed random variable, the IQR is

a. twice the standard deviation

b. less than twice the standard deviation

c. larger than twice the standard deviation

d. Can't tell because this will depend on the specific mean and standard deviation of the normal distribution.

Step by Step Solution

★★★★★

3.39 Rating (158 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Statistics Alive Questions!

A contractor has concluded from his experience that the cost of building a luxury home is a normally distributed random variable with a mean of $500,000 and a standard deviation of $50,000. a. What...

An airline flies daily from San Francisco to Chicago. Most of the passengers are business travelers. There are 150 seats available in the single cabin plant. The average ticket price is $300 per...

The city fuel economy of a 2009 Toyota 4Runner 2WD 6 cylinder 4 L automatic 5-speed using regular gas is a normally distributed random variable with a range 16 MPG to 21 MPG. (a) Estimate the...

Math 10 Exam 2 (PLS SHOW WORK and ANSWER ALL THE QUESTIONS ---- NO EXCEPTION ) ( NOTE: your answer should be among the multiple choice questions/ answer if it's it means your is wrong so pls do your...

1. (2 points) If X is normally distributed random variable with mean u = 25 and standard deviation o = 3, then P(X > 28) is a) 0.7486 b) 0.8413 c) 0.3413 d) 0.1587 2. (2 points) If Z is a standard...

Mechanical Engineering Department ME 406 Manufacturing and Design First Semester 2017 (Term-171) HOMEWORK # 2 (Engineering Statistics) Assigned by: Dr. Anwar K. Sheikh/Dr Numan Abu Dheir Assigned on...

The amount of fuel consumed by the engines of a jetliner on a flight between two cities is a normally distributed random variable X with mean=5.7 tons and standard deviation =0.5 tons. Carrying to...

Use calculator to find the value of z* that yields the probability shown. 1. P(Z 2*)=0.0055 | 2.5427 4. P(Z>z*)=0.7995 ~0.8398 Answer 1: -0.4399 Answer 2: 2.3301 Answer 3: 2.5427 Answer 4: -0.8398...

STATISTICS FOR DECISION MAKING Dr. Azar Abizada HOMEWORK 4 Due Date: Wednesday, March 11th class time Problem 1 (26 points): Be careful, each part of this question is independent of one another. a)...

31, 6.2.9 Question Help Find the indicated IQ score. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15....

Choose the correct answer with a short explanation. 5. In a two-consumer, two-good, exchange economy, both consumers have quasilinear utility functions that are linear in good 2. If quantities of...

The purpose of this case is to introduce you to the information available on the website of the Financial Accounting Standards Board (FASB). Required: Access the FASB home page on the Internet. The...

Which of the following risks is relevant for the purpose of determining the risk premium of a security? a . Liquidity risk b . Financial risk c . Business risk d . Default risk

What cultural values seem to accommodate or reject traditional performance evaluation systems? Nokia, the Finnish-based world leader in the telecommunications industry, has exten sive experience with...

Sketch plots of lines Identify the values of the y-intercept a and the slope b, and sketch the following regression lines, for values of x between 0 and 10. a. yn = 7 + 0.5x b. yn = 7 + x c. yn = 7 -...

Buchanan vote Refer to Example 6 and the Buchanan and the Butterfly Ballot data file on the books website. Let y = Buchanan vote and x = Gore vote. a. Construct a box plot for each variable....

Prices and protein revisited Is there a relationship between the protein content and the cost of Subway sandwiches? Use software to analyze the data in the following table a. Construct a scatterplot...

Faleye Consulting is deciding which of two computer systems to purchase. It can purchase state-of-the-art equipment (System A) for an after-tax cost of $23,000, which will generate after-tax cash...

An Asset possessed by the business should be shown in which part of balance sheet? A . Liabilities B . Assets C . Revenues D . Fixed Assets

urgently needed Q1. (50 pts) You are working as an Operations Research Intern at the European Headquarters of a single- type car manufacturer. As today's task, you have been asked to model an IP...