The data set shows the admission prices at several glass-blowing workshops.



$\$20,\ \$20,\ \$16,\ \$12,\ \$15,\ \$25,\ \$11$



Find and interpret the range, interquartile range, and mean absolute deviation of the data.



The range is

. The interquartile range is

. The mean absolute deviation is



Question 2

The prices vary by no more than $

. The middle half of the prices vary by no more than $

. The admission prices differ from the mean price by an average of $