Difference between revisions of "EBook Problems EDA Center"
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Revision as of 02:37, 3 January 2009
Contents
EBook Problems Set - Measures of Central Tendency Problems
Problem 1
Suppose that in a certain country, the average yearly income for 75% of the population is below average, what would you use as the measure of center and spread?
- Choose one answer.
- (a) Mean and interquartile range
- (b) Mean and standard deviation
- (c) Median and interquartile range
- (d) Mean and standard deviation
Problem 2
According to a story in the Guardian newspaper in the U.K., the mean wage for a Premiership player in 2001-2002 in the U.K. was 600,000 pounds. Which of the following is most likely true?
- Choose one answer.
- (a) About as many Premiership players make more than 600,000 pounds as make less.
- (b) Most Premiership players make close to 600,000 pounds.
- (c) Most Premiership players make less than 600,000 pounds.
- (d) Most Premiership players make more than 600,000 pounds.
Problem 3
Statisticians often use the term "robust" when referring to a statistical measure or test. Which of the following is an example of a robust measure of center?
- Choose one answer.
- (a) Median, because it is resistant to outliers
- (b) Mean, because it is the most commonly used measure of center
- (c) Mode, because it can be used with observational or quantitative data
Answer
- Back to Ebook
- SOCR Home page: http://www.socr.ucla.edu
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