Consider the following data set.
13 13 12 20 22 24 16 15 17 20 21 18 21
a) Determine Katherine quantiles f,or this data
b) Determine the interquartile range for this data.
a) The first quartile is _________, the second quartile is _________, and the third quartile is ___________
(Type integers or decimals)
b) The interquartile range is _________.
(Type an integer or a decimal)