Descriptive Statistics

Which of the following is a measure of central tendency?

• Range

• Mean

• Standard deviation

What are the range and standard deviation examples of?

• Measures of distraction

• Measures of variation

• Measures of dispersion

Which of these measures of central tendency refers to the most common value?

• Mean

• Mode

• Median

Which of these measures of central tendency is distorted by extreme values?

• Mean

• Mode

• Median

Which of these is the only measure of central tendency that can be used with nominal data?

• Mean

• Mode

• Median

Which of these is the difference between the highest and lowest values in a data set?

• Median

• Standard deviation

• Range

What is an advantage of the mean?

• It is the most sensitive measure of central tendency

• It is the easiest measure to calculate

• It is not distorted by extreme values

What does the standard deviation tell us about the data set?

• How high or low the values are

• The average

• How spread apart the values are from the mean

If the standard deviation of a data set was 0, this would mean all the values were exactly the same.

• True

• False

The standard deviation is a more precise measure of dispersion than the range.

• True

• False