Question

Find the value of median in the following data:

Daily wages and
Number of workers

70 08

60 20

80 15

100 04

90 12
​

Answer 1

Answer:

85

Step-by-step explanation:

ANSWER

Wages mid point

(m) frequency

(f) (m-75)/10

(d) fd c.f.

50-60 55 5 -2 -10 5

60-70 65 10 -1 -10 15

70-80 75 15 0 0 30

80-90 85 20 1 20 50

90-100 95 25 2 50 75

n=75 ∑fd=50

Median is given by L+ f2 n − c.f.×i

where L is the lower limit of the median class. (median class is the class where

2nd term is lying)

c.f. is the cumulative frequency of the class preceding the median class

f is the frequency of the median class

i is the class interval of the median class.

From the above table,

L=702n

=37.5

c.f.=15

f=15

i=10

Therefore, median=70+ 37.5−15/15 × 10

=70+15

=85

Answer 2

Answer:

find the cumulative frequency, u will get is as 59 at the end

median = l+(n/2-cf) /fx h

80+(29.5-43)/15 x 10

80+(-13.5)/3x 2

80+(-4.5)x2

80 -9 = 71

median = 71

i'm not a pro but i hope this might help u :)