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Statistics

Question 2:

If the median of the distribution is given below is 28.5, find the values of x and y.

Class interval

Frequency

0 − 10

5

10 − 20

x

20 − 30

20

30 − 40

15

40 − 50

y

50 − 60

5

Total

60

Answer:

The cumulative frequency for the given data is calculated as follows.

Class interval

Frequency

Cumulative frequency

0 − 10

5

5

10 − 20

x

5+ x

20 − 30

20

25 + x

...

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