Question

9. Find the median daily wages from the following frequency distribution:
Daily wages (in Rs.)
100-150
150-200
200-250
250-300
300-350
Number of workers
6
3
5
20
10​

Answer 1

Step-by-step explanation:

Calculation for mean

Class Mid value (x) frequency

f y=

50

x−325

fy

100-150 125 4 -4 -16

150-200 175 8 -3 -24

200-250 225 14 -2 -28

250-300 275 42 -1 -42

300-350 325 50 0 0

350-400 375 40 1 40

400-450 425 32 2 64

450-500 475 6 3 18

500-550 525 4 4 16

N=200 ∑fy=138−110=28

Mean(

x

ˉ

)=A+

N

∑fy

×d

=325+

200

28

×50

=325+7

=Rs332