Question

Find the median for the following frequency distribution table:Class Intervals0-5 5-10 10-15 15-20 30-25 25-30 Frequency 5 3 9
10 8 5

Answer 1

0-5 5 5
5-10 3 8
10-15 9 17
15-20 10 27
30-35 8 35
25-30 5 40
n/2 =40=40/2=20

l = 15
h = 5
f =10
cf =17


median formula = l+(n/2-cf/f)×h
=15+(20-17/10)×5
=15+ (3/10)×5
=15+15/10
=150+15/10
=165/10
=16.5 ANSWER
$l + ( \frac{n}{2} - cf \div f) \times h \\ \\ this \: is \: median \: \: formula$