### Home > CC3 > Chapter 3 > Lesson 3.2.5 > Problem3-115

3-115.

Louis recorded how many times he could jump rope without stopping. Here is his data:

$50\ \ 15\ \ 102\ \ \ 64\ \ 29\ \ 55\ \ 100\ \ 97\ \ 48\ \ 81\ \ 61$

Find the median, upper quartile, and lower quartile of his data.

Arrange the data in ascending numerical order.

$15,29,48,50,55,61,64,81,97,100,102$

Find the middle number, the middle number of the upper half, and the middle number of the lower half.

Median $=61$
Upper Quartile $=97$
What is the value of the lower quartile?