Find the median in the set of numbers given below:
62, 68, 53, 57, 20, 30, 32, 45, 72, 77, 81

6

(a)

The hourly wages of 7 workers are 19, 21, 32, 45, 60, 65, 70. Find the median wages.

6

(a)

Find the Lower and Upper Quartile in the set of numbers given below:
62, 68, 53, 57, 20, 30, 32, 45, 72, 77, 81

6

(a)

Calculate Q₁ and Q₃ from the following data set.

Marks in Economics	0-10	10-20	20-30	30-40	40-50	50-60	60-70	70-80
No. of students	5	15	18	12	20	15	7	3

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(a)

From the data given below, find Q₁ and Q₃.

Mid Values	10	20	30	40	50	60
Frequency	3	5	8	6	5	3

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(a)

From the data given below, find Mean, Median and Mode.

Marks	0-10	10-20	20-30	30-40	40-50	50-60
No of students	8	12	20	10	6	4

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(a)

Define Mode. Discuss its merits and demerits.

6

(a)

State relation between mean, median and mode in normal and skewed distribution with an example.

6

(a)

What are quartiles? How are quartiles, deciles and percentiles different from each other?

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