The interquartile range of the data set is 4.
2,2, 3, 3, 4, 5, 5, 6, 7, 9, 12
Which explains whether or not 12 is an outlier?
O
O
O
Twelve is an outlier because it is greater than the sum of 7 and 4.
Twelve is an outlier because it is less than the sum of 7 and 6.
Twelve is not an outlier because it is greater than the sum of 7 and 4.
Twelve is not an outlier because it is less than the sum of 7 and 6.
O