The distribution of blood types in the United States is as follows, where positive and negative refer to the Rhesus (Rh) factor:

O-positive: 37 %

O-negative: 7 %

A-positive: 35 %

A-negative: 6 %

B-positive: 9 %

B-negative: 2 %

AB-positive: 3 %

AB-negative: 1 %

Is blood type A positive and negative qualitative or quantitative variable?Explain.

Help Create frequency table and pie chart showing the percentage of each major blood type, ignoring Rh factor.