Statistics Measures Quiz

What is the arithmetic mean?

• A measure of central tendency

• A measure of variability

• A measure of relative position

• A measure of linear relationship

What does the median represent?

• The middle value when data is ordered

• The average of all values

• The most frequently occurring value

• The range of the data

What is the mode?

• The value that appears most frequently

• The average of the data set

• The middle value of the data set

• The difference between the highest and lowest values

How is the range calculated?

• Maximum observation - Minimum observation

• Average observation

• Median observation

• Standard deviation

What is the range of the data set {4, 4, 4, 4, 50}?

• 46

• 50

• 4

• 0

What is a major advantage of the range as a measure of variability?

• It is easy to calculate

• It considers all data points

• It is not affected by outliers

• It provides a detailed distribution

What is a major disadvantage of the range?

• It only considers two observations

• It is difficult to calculate

• It is always accurate

• It is not affected by extreme values

What is the coefficient of variation?

• The ratio of standard deviation to the mean.

• The ratio of mean to standard deviation.

• The standard deviation of the sample.

• The mean of the sample.

What is the coefficient of variation?

• A measure of relative variability

• A measure of absolute variability

• A measure of central tendency

• A measure of dispersion

What does the 60th percentile in GMAT scores indicate?

• 60% of scores are below yours

• 40% of scores are below yours

• You scored in the top 60%

• You scored in the bottom 40%