Suppose we have a mound-shaped distribution with a mean of 50 and a standard deviation 10. 1.

Fantastic news! We've Found the answer you've been seeking!

Question:

Suppose we have a mound-shaped distribution with a mean of 50 and a standard deviation 10.

1. About what proportion of the observations are within 2 standard deviations?

2. About what proportion of the observations are between 30 and 50?

3. About what proportion of the observations are above 70?

Related Book For answer-question

Elementary Statistics

ISBN: 978-0538733502

11th edition

Authors: Robert R. Johnson, Patricia J. Kuby

See More Books

Posted Date: Feb 17, 2020 04:29 AM

See More Questions

A sample has a mean of 50 and a standard deviation of 4.0. Find the z-score for each value of x: a. x = 54 b. x = 50 c. x = 59 d. x = 45
Suppose we have a stochastic model Yi = xi + i Where the is are independent with mean 0 and variance 2xi. Show that the weighted least squares estimator of is = /x. Is the standard error for that...
Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us. (a) Suppose n = 33 and p = 0.21. Can we approximate the ^p distribution by...
Write Python program which implements the following two classical cryptosystem a) Affine Cipher b) Vigenere Cipher Your program should consist of at least five functions: a) Two functions named...
How do IFRS rules differ in the reporting of research and development costs? Which is more conservative in the reporting of research and development costs, U.S. GAAP or IFRS?
A lottery game called Quinto is played by choosing five numbers each, from 0 through 9. How many numbers are possible? Although repeats are allowed, how many numbers are possible if repeats are not...
Washington Tennis & Education Foundation, Inc. (WTEF) is a nonprofit organization operating in the District of Columbia that provides athletic and academic programs for children from low-income...
Kraft Enterprises owns the following assets at December 31, 2010. What amount should be reported ascash? Cash in bank-savings account Checking account balance Postdated checks Certificates of deposit...
Suppose that farmers have a mandatory demand expansion program where all farmers pay a certain amount to fund a promotion program. You have estimated the following market supply and demand functions...
Fourth-Sixth-Twelfth Bank currently pays an annuall dividend of $1.40 per share. After extensive analysis, you forecast that the Bank's stock will continue to pay the $1.40 dividend for four years....
Number 12.44. 12.45. Please help me simple harmonic 12.43. Write the Hamiltonian of a simple pendulum and derive its equation of mouon. 12.44. Find Hamilton's cquations for a harmonic oscillator for...
What are the perspectives of interactionists and conflict theorists regarding the process of aging, and how do these viewpoints contrast with the functionalist approach?
There are two drivers. Driver A has the loss distribution X with E[X] = 4 and Std[X] = 6. Driver B has the loss distribution Y with E[Y] = 6 and Std[Y] = 5. A & B want to share the risk by pooling...
provide a short answer to the following questions: a. Suppose that Firm A has a greater cost of equity capital than Firm B. It is necessarily true that Firm A also has a higher WACC? Why or why not?...
Pizza Palace only sells Pizza Packages for 150.00 each. They are a Pizza Catering Operation. Un-jumble the following income statement and answer the questions below. Interest 3,000 Advertising...
In what manner are the treadmill of production and the treadmill of consumption inherently interrelated and mutually influential?
A Fibonacci sequence is the integer sequence of 0, 1, 1, 2, 3, 5, 8.... The first two terms are 0 and 1. All other terms are obtained by adding the preceding two terms. The nth term is the sum of...
Solve the relation Exz:Solve therelation ne %3D
As listed in The World Factbook, 2009, the age structure of the U.S. population is shown in the table. If one U.S. citizen were to be selected at random from this population, what is the probability...
a. Use the scatter diagram you drew in Exercise 3.19 (p. 133) to estimate r for the sample data on the number of hours studied and the exam grade. b. Calculate r.
The May 26, 2009, USA Today Snapshot Overcoming identity theft reported the results from a poll of identity-theft victims. According to the source, Affinion Security Center, 20% of the victims stated...
How might planning in a not-for-profit organization such as the World Wildlife Fund differ from planning in a for-profit organization such as Airbnb?
Provide examples of the sources of data a residential solar panel company might gather when engaging in environmental scanning. Exhibit 8-6 may be helpful when answering this question.
What advantages and disadvantages does Johnson Controls OpenBlue platform have over companies looking to develop solutions on their own?

Suppose we have a mound-shaped distribution with a mean of 50 and a standard deviation 10. 1.

Question:

Expert Answer:

Given 50 and 10 1 Observations are within 2 standard deviations So X1 2 30 and X2 2 70 Proporti... View the full answer

Elementary Statistics

Students also viewed these mathematics questions