please solve this question
Attachments:
Answers
Answered by
1
Class Frequency fixi
0-5 5 5
10-20 25 30 (cf)
20-30 P(f) 30 + P
30-40 18 48 + P
40-50 7 55 + P
Total (n) 50
So n = 55 + P
median is 24 which lies between 20 and 30
So median class is 20-30
Lower limit median class (l) = 20
Cumulative frequesncy (cf) = 30
Frequency median class f = P
Class size h= 10
24 = 20 + [(55 +P)/2 - 30] x 10
P
24 = 20 + [ 55+p) - 60 ]x 5
P
4P = (-5 + p) 5
4P = -25 + 5p
P = 25
Similar questions