Statistics Quiz

Which phrase is used generically in place of measures of central tendency and dispersion for inferential statistics?

• Measures of central tendency

• Descriptive statistics

• Summary statistics

• Measures of dispersion

Which of the following is a measure of central tendency?

• Mean

• Standard Deviation

• Range

• Variance

What is the main problem associated with the mean value of some data?

• It is affected by the mode

• It is difficult to compute

• It is not a representative measure

• It is sensitive to outliers

What is the median?

• The middle value among some scores of a variable

• The average score or value

• The most frequent response or value for a variable

• The value between the minimum and maximum values of a variable

What is the mode?

• The value between the minimum and maximum values of a variable

• The average score or value

• The middle value among some scores of a variable

• The most frequent response or value for a variable

Which measure of dispersion tells us about the variability in the data?

• Standard Deviation

• Range

• Variance

• Mean

What does the range measure?

• The difference between the minimum and maximum values of a variable

• The standard deviation squared

• The distance between the mean and median

• The spread or range of variability

What is the purpose of graphing data?

• To create frequencies

• To calculate measures of central tendency

• To summarize data

• To present evidence

What does a pie chart represent?

• The variability and central tendency of data

• The distribution of data

• The amount of skewness and kurtosis

• The ranking of data

What is the interquartile range in a data set?

• The range between the first quartile and the third quartile

• The range between the minimum and maximum values

• The range between the mean and the median

• The range between the mode and the median