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Statistics Ex 14.4 Solutions

Question - 1 : - The following distribution gives the daily income of 50 workers if a factory. Convert the distribution above to a less than type cumulative frequency distribution and draw its ogive.

Answer - 1 : -


Daily income in Rupees

100-120

120-140

140-160

160-180

180-200

Number of workers

12

14

8

6

10



Question - 2 : - During the medical check-up of 35 students of a class, their weights were recorded as follows:

Answer - 2 : -


Weight in kg

Number of students

Less than 38

0

Less than 40

3

Less than 42

5

Less than 44

9

Less than 46

14

Less than 48

28

Less than 50

32

Less than 52

35

Draw a less thantype ogive for the given data. Hence obtain the median weight from the graphand verify the result by using the formula.

Question - 3 : - The following tables gives production yield per hectare of wheat of 100 farms of a village.

Answer - 3 : -


Production Yield

50-55

55-60

60-65

65-70

70-75

75-80

Number of farms

2

8

12

24

38

16

Change thedistribution to a more than type distribution and draw its ogive.

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