Posted by Jasmine on Tuesday, September 9, 2008 at 6:58pm.
Weekly mileage totals 24 runners
10 15 20 25 30 35 40 45 50 55 60
Max 55 Min 15 Q1 20 Q2 35 Q3 40
1 What percent of runners run less than 40 miles a week?
2 How many runners run less than 20 miles a week

math  PsyDAG, Wednesday, September 10, 2008 at 3:32am
First, 10 is your minimum (the least)rather than 12, and 60 is your maximum (the most).
1. Q3 = 75th percentile
2. Q1 = 25th percentile
Q2 = 50th percentile or the median.
This is assuming that your quartile values are correct.
I hope this helps. Thanks for asking.
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