Posted by josh on .
The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second quartile for this data set?

statistics 
bobpursley,
put them in rank
25;35;45;50;60;80;90;95;100
Median 60, fourth quartile 92.5, second quartile 40 
statistics 
PsyDAG,
After putting them in order of value, the second quartile = median (2/4 = 1/2). First quartile indicates the lowest 25%, while the third quartile indicates the highest 25%.