Author Question: In 2012, the average donation to the Help Way was 225 with a standard deviation of 45 . In 2013, the ... (Read 206 times)

ssal

  • Hero Member
  • *****
  • Posts: 572
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
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
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

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.

For a complete list of videos, visit our video library