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

Author Question: If the coefficient of correlation is .8, the percentage of variation in the dependent variable ... (Read 94 times)

oliviahorn72

  • Hero Member
  • *****
  • Posts: 579
on: Jun 24, 2018
If the coefficient of correlation is .8, the percentage of variation in the dependent variable explained by the variation in the independent variable is
 a. .80.
  b. 80.
  c. .64.
  d. 64.

Question 2

A major department store has determined that its customers charge an average of 500 per month, with a standard deviation of 80 . Assume the amounts of charges are normally distributed.
 a. What percentage of customers charges more than 380 per month?
  b. What percentage of customers charges less than 340 per month?
  c. What percentage of customers charges between 644 and 700 per month?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tashiedavis420

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

a. 93.32
b. 2.28
c. 2.97


oliviahorn72

  • Member
  • Posts: 579
Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review

blakcmamba

  • Member
  • Posts: 335
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Continuous variation in a polygenic trait. Continuous variation in a polygenic trait.
Context-Dependent Learning Context-Dependent Learning
Reclining hand to foot pose variation (sputa padangushtasana in hatha yoga), and elbow press to ... Reclining hand to foot pose variation (sputa padangushtasana in hatha yoga), and elbow press to ...
How to rearrange formulas to isolate for a variable (Part 2) How to rearrange formulas to isolate for a variable (Part 2)
Ways to Measure Percentage of Body Fat Ways to Measure Percentage of Body Fat
Variation in Solar Intensity With Latitude Variation in Solar Intensity With Latitude
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library