Question

25. Find the median of the following data:.
x F
10 2
20 3
30 2
40 3
50 1​

Answer 1

median formula

l+(n/2-cf)*h

f

Ci F less than cf

0-10 2 less than 10 2

10-20 3 " "20 2+3=5

20-30 2 " "30 5+2=7

30-40 3 " 40 " 7+3=10

40-50 1 " "50 10+1=11

n/2=11/2=5.5

l=30

h=10

cf=5

f=2

30+(5.5-5)10

2

30+(0.5)10

2

30+5

2

35/2

17.5