This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The SAT scores of students are normally distributed with a mean of 950 and a standard deviation of ... (Read 117 times)

ahriuashd

  • Hero Member
  • *****
  • Posts: 535
on: Jun 24, 2018
The SAT scores of students are normally distributed with a mean of 950 and a standard deviation of 200.
 a. Nancy Bright's SAT score was 1390 . What percentage of students have scores higher than Nancy Bright?
  b. What percentage of students score between 1100 and 1200?
  c. What are the minimum and the maximum values of the middle 87.4 of the scores?
  d. There were 165 students who scored above 1432 . How many students took the SAT?

Question 2

A descriptive measure of the strength of linear association between two variables is the
 a. coefficient of determination.
 b. slope b1 of the estimated regression line.
  c. standard error of the estimate.
 d. correlation coefficient.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kjohnson

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jun 24, 2018
Answer to Question 1

a. 1.39
b. 12.1
c. 644, 1256
d. 20,625

Answer to Question 2

d


ahriuashd

  • Member
  • Posts: 535
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

sarah_brady415

  • Member
  • Posts: 328
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh In this 1900 cartoon, oil baron John D. Rockefeller holds the White House in the palm of his hand wh
Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig Dewey and the reformers attacked classes, such as this one, circa 1900, where students sat up straig
Young adults with low levels of parental support report significantly better scores on measures of ... Young adults with low levels of parental support report significantly better scores on measures of ...
Standard Alcoholic Drink Sizes Standard Alcoholic Drink Sizes
The Plunger and Barrel of a Standard Syringe The Plunger and Barrel of a Standard Syringe
Children's behaviour rating scores on measures of aggression and anxiety Children's behaviour rating scores on measures of aggression and anxiety
Video: Heart Chambers

For a complete list of videos, visit our video library