Question: 8.The personality variable extraversion is normally distributed in the population and has a mean of 10 and a standard deviation of 3. Researchers consider individuals

8.The personality variable extraversion is normally distributed in the population and has a mean of 10 and a standard deviation of 3. Researchers consider individuals who have extraversion scores greater than 13 to be “highly” extroverted. What is the probability that you can randomly sample 2 people from the population, and both would be “highly” extroverted

Step by Step Solution

★★★★★

3.43 Rating (153 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Given that Mean10 Standard deviation3 Researchers consider individuals who have extraversio... View full answer

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 Mathematics Questions!

A sample of 2000 observations has a mean of 74 and a standard deviation of 12. Using Chebyshevs theorem, find at least what percentage of the observations fall in the intervals x 2s, x 2.5s, and x ...

A population of unknown shape has a mean of 3,000 and a standard deviation of 200. a. Find the minimum proportion of observations in the population that are in the range 2,600 to 3,400. b. Determine...

A normal population with unknown variance has a mean of 20. Is one likely to obtain a random sample of size from this population with a mean of 24 and a standard deviation of 4.1? If not, what...

For a random variable that is normally distributed, with 5 80 and 5 10, determine the probability that a simple random sample of 25 items will have a mean that is a. greater than 78. b. between 79...

A random variable X is normally distributed with X = 5 and X = 2.7. Find the following probabilities, using both manual calculations and the MINITAB program: (a) P(X -1.50)

1. The total number of packages shipped over five days is normally distributed. 2. The difference between the numbers of packages shipped on any two consecutive days is normally distributed. 3. The...

A radar unit is used to measure the speed of auto-mobiles on an expressway during rush-hour traffic. The speeds of individual automobiles are normally distributed with a mean of 62 mph. a. Find the...

A student has 23 candy sticks in a bag, with lengths that are normally distributed. Each stick is, on average 1.8 cm long, with standard deviation 0.5 cm. What is the probability that the total...

In Data 1.3 on page 10, we describe a 10-year study in which scientists investigated the effect of tagging penguins with either a metal strip or an electronic tag. In the study, a sample of 100...

The article Selected Characteristics of High-Risk Students and Their Enrollment Persistence (Journal of College Student Development [1994]: 5460) examined factors that affect whether students stay in...

Required information [The following information applies to the questions displayed below.) Nicole's Getaway Spa (NGS) has been so successful that Nicole has decided to expand her spa by selling...

TFS is trading at $50 / share.It has no dividend and the current cc interest rate is 4%.What is the 2 month forward price? TFS is still trading at $50 / share and the cc interest rate r =...

You have received detailed feedback on the concept you proposed for assignment 1. Based on that feedback and based on the concept of Minimum Viable Product - MVP you must rethink and sharpen your...

Morgan's Selling Price 135 Process 1 Process 2 Fixed Cost 110,000 45,000 Variable Cost. 40 100 Labor Hours / unit 4 10 Suppose that Morgan is going to produce at 1300 units and would choose Process...

From the movie Everest, Guide Rob Hall attempts to help his client, Beck Weathers, get across a chasm. Based on "Leading in Times of Uncertainty, analyze the extent to which this scene reflects...

3. The book uses 4 synonyms for the average of the outcome if you played a game over and over. The four synonyms are? 1. Variance 2. Semivariance 3. Systematic distributions 4. Asystematic...

2. Weighted Average Cost of Capital An entrepreneur has an idea for a new company, and you are helping her to estimate the cost of capital for this new company. You have identified a publicly-traded...

Why do CPA firms sometimes use a combination of positive and negative confirmations on the same audit?

Light strikes a sodium surface, causing photoelectric emission. The stopping potential for the ejected electrons is 5.0 V and the work function of sodium is 2.2eV. What is the wavelength of the...

A criminologist conducted a survey to determine whether the incidence of certain types of crime varied from one part of a large city to another. The particular crimes of interest were assault,...

Let X denote the reaction time, in seconds, to a certain stimulus and Y denote the temperature (F) at which a certain reaction starts to take place. Suppose that two random variables X and Y have the...

7.8 Describe causal factors in bipolar disorders.

T F Men are about twice as likely as women to develop major depression. (p. 251)

T F Placing a powerful electromagnet on the scalp can help relieve depression. (p. 280)