Question

2. Compute the median from the following data:
Marks 0-7 7-14 14-21 21-28 28-35 35-42 42-49
Number of
347110169
students
3. The following table shows the daily wages of workers in a factory:
Daily wages (in) 0-100 100-200 200-300 300-400 400-500
Number of workers
48
Find the median daily wage income of the workers.
40
7
32
22​

Answer 1

Answer:

35

166.25

Step-by-step explanation:

Class      frequency      cf

0-7             3                   3

7-14            4                   7

14-21          7                  14

21-28         1                   15

28-35        10                 25

35-42        16                  41

42-49        9                  50

Median will lie in 35 - 42

Estimated Median =  35  + 7  * (50/2 - 25)/ (10)

= 35 + 0

= 35

0-100              48         48

100-200          40         88

200-300         7            95

300-400         32         127

400-500        22          149

Median Lies in 100-200

Estimated Median =   100  + 100 * ( 149/2 - 48)/40

= 100  + 100 * 26.5/40

= 100 + 66.25

= 166.25

Answer 2

Step-by-step explanation:

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