Find Median
Class 200-219 220-239
fi 1 5 1 8
240-259
12
260-279 280-299 300-319
10 17 18
Answers
Answer:
Since class isn't uniform,we must make it uniform.
For that, subtract .5 from lower class and add .5 to upper class.
So table is going to be this:
Class Frequency Cf
199.5-219.5 5 5
219.5-239.5 8 13
239.5-259.5 12 25
259.5-279.5 10 35
279.5-299.5 17 52
299.5-319.5 18 70
TOTAL: 70
half of 70 is 35
Therefore, median class is 279.5-299.5
Im sorry cuz the numbers are not in line...and I hope it helps you...