Quartiles divide the ranked data set (arranged low to high) into four groups, or quarters. Each data set has three quartiles: the first quartile, Q_1; the second quartile, Q_2; and the third quartile, Q₃. The first quartile is the median of the lower half of the data, the second quartile is the median, and the third quartile is the median of the upper half of the data.

Value: 2

Find Q₁ for the following data set:

{ 4, 7, 9, 12, 13, 17, 20, 22, 26, 31, 33 }

Value: 2

Find Q₂ for the following data set:

{ 4, 7, 9, 12, 13, 17, 20, 22, 26, 31, 33 }

Value: 2

Find Q₃ for the following data set:

{ 4, 7, 9, 12, 13, 17, 20, 22, 26, 31, 33 }