table above.
ency
Fig. 14.5
Table 14.17
5 - 10
10-15 15 - 20 20-25 25-30 30-35 35-40
Classes
No. of shops
Cumulative
frequency
2
12
2
4.
3
4
3
2
14
16
20
23
27
30
Draw
The
50
40
More than ogive
30
Using these values, we plot the points
(10,2), (15,14), (20,16), (25,20), (30, 23),
(35, 27), (40, 30) on the same axes as in
Fig. 14.5 to get the 'less than' ogive, as
shown in Fig. 14.6.
The abcissa of their point of intersection is
nearly 17.5, which is the median. This can
also be verified by using the formula.
Hence, the median profit (in lakhs) is
17.5.
Remark in the above examples, it may
be noted that the class intervals were
continuous. For drawing ogives, it should
be ensured that the class intervals are
continuous. (Also see constructions of
histograms in Class IX)
Cumulative frequency
20
Less than'ogive
10
O
10
30 40 50
Median (17.5)
Profit (Rs in lakhs) -
Fig. 14.6
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Answer: The following table shows the ages of the patients admitted in a hospital during a year: age (in years). 5 - 15 15 - 25 25 - 35 3 5 - 45 45 - 55 55 - 65. Number of patients. 6. 11. 23. 14. 5. Find the mode and the mean of the data given above. ... 15 - 20. 20 - 25. 25 - 30. 30 - 35. 35 - 40. 40 - 45. 45 - 50. 50 - 55
Step-by-step explanation: i hope this may hleps you
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