Only answer if you know it please. Aron measured the heights of his plants. The nights in inches are 10, 11, 13, 15, 17, 18, 19, 20, 20, 23, 25, 27 .
What is the value of the lower quartile?
a) 14.0 inches
b) 18.5 inches
c) 21.5 inches
d) 20.0 inches