The most suitable average for qualitative measurement is:

1

(a)

Arithmetic Mean

(b)

Median

(c)

Mode

(d)

Geometric Mean

(e)

None of the above

Which average is most affected by extreme values?

1

(a)

Median

(b)

Mode

(c)

Arithmetic Mean

(d)

Geometric Mean

(e)

Harmonic Mean

The algebraic sum of deviations of a set of n values from arithmetic mean is:

1

(a)

n

(b)

0

(c)

1

(d)

None of the Above

The sum of deviation of items from median is zero.

1

(a) True

(b) False

An average alone is not enough to compare series.

1

(a) False

(b) True

Arithmetic mean is a positional value.

1

(a) True

(b) False

Upper quartile is the lowest value of top 25% of items.

1

(a) True

(b) False

Find Median from the following data:
100, 300, 540, 710, 340, 375, 50, 600, 630

1

(a)

375

Find Median from the following data.
550,400,450,490,300,520,500

1

(a)

490

Calculate Median from the following data.
3, 2, 1, 5, 6, 11, 12, 16, 14, 10

1

(a)

8

Using following data, find median.
210, 312, 30, 243, 12, 453, 210, 910, 540,165

1

(a)

226.5

Find median from the data given below:

Wages (per hour):	20	25	30	35	40	45	50
Number of Workers:	5	7	6	10	5	4	4

3

(a)

From the data given below, find median.

Wages	No. of workers
Less than 10	50
Less than 20	35
Less than 30	25
Less than 40	20
Less than 50	18
Less than 60	10

3

(a)

Find the Q₁ and Q₃ of the following:
4, 5, 6, 7, 8, 9, 12, 13, 15, 10, 20

3

(a)

The hourly wages of 7 workers are 19, 21, 32, 45,60,65,70. Find the Q₁ and Q₃ of these wages.

3

(a)

From the following data of the marks obtained by 60 students of a class, find median.

Marks	20	30	40	50	60	70
No of students	8	12	20	10	6	4

3

(a)

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

6

(a)

From the data given below, find median.

Pocket Expenses	Frequency
0-10	2
10-30	9
30-100	3
100-500	5
500-1000	4
1000-2000	2

6

(a)

Find the Q₁ and Q₃ of the given data 13, 0, 5, 8, - 8, - 5, 10, 7, 1, 0, 0, 4, 6, 16

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

6

(a)