Statistical Methods-Measures of Location (ISS Statistics Paper I (Old Subjective Pattern)): Questions 7 - 7 of 7

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Question number: 7

» Statistical Methods » Measures of Location

Appeared in Year: 2013

Essay Question▾

Describe in Detail

For the following frequency distribution on 229 values:

Class

Frequency

0 - 10

12

10 - 20

30

20 - 30

x

30 - 40

65

40 - 50

y

50 - 60

25

60 - 70

18

the median is found to be 46. Find the values of x and y.

Explanation

The cumulative frequency is

Class

Frequency

Cumulative frequency

0 - 10

12

12

10 - 20

30

42

20 - 30

x

42 + x

30 - 40

65

107 + x

40 - 50

y

107 + x+y

50 - 60

25

132 + x+y

60 - 70

18… (179 more words) …

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