« previous next »

Author Question: In 2012, the average donation to the Help Way was 225 with a standard deviation of 45 . In 2013, the ... (Read 168 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
on: Aug 1, 2018
In 2012, the average donation to the Help Way was 225 with a standard deviation of 45 . In 2013, the average donation was 400 with a standard deviation of 60 . In which year did the donations show a more dispersed distribution?

Question 2

In 2008, the average age of students at UTC was 22 with a standard deviation of 3.96 . In 2009, the average age was 24 with a standard deviation of 4.08 . In which year do the ages show a more dispersed distribution? Show your complete work and support your answer.


ju

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Aug 1, 2018
Answer to Question 1

The coefficient of variation in 2012 was 20 (more dispersed).
The coefficient of variation in 2013 was 15.

Answer to Question 2

C.V. for 2008 = 18, C.V. for 2009 = 17
Therefore 2008 shows a more dispersed distribution.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

Vaccines prevent between 2.5 and 4 million deaths every year.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Average optimal blood pressure for age Average optimal blood pressure for age
Standard Laboratory Lipid Profiles Standard Laboratory Lipid Profiles
Cumulative Standard Normal Distribution Cumulative Standard Normal Distribution
How to find the average value of a function How to find the average value of a function
Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012 Percentage of Americans Living in Communities with a Fluoridated Water Supply, by State. 2012
Chart showing average yearly dose of radiation from natural and human-made sources Chart showing average yearly dose of radiation from natural and human-made sources
Video: Sperm Formation

For a complete list of videos, visit our video library