Tribhuvan University

BBSBachelor

Business Statistics

Subject Code: MGT 202Year: 2080

Full Marks: 100Time: 3 Hours

BBS Papers

Group A

Brief Answer Questions

Attempt all questions.

1

State any two principle objectives of classification.

[2 marks]

2

If mean = 25, mode = 28 and standard deviation = 5, find coefficient of skewness.

[2 marks]

3

If the third quartile and median are 30 and 22 respectively. Find the first quartile, assuming the distribution to be symmetrical.

[2 marks]

4

If the quartiles coefficient of skewness is 0.6, quartile deviation is 5 and the third quartile is 28, find the median of the distribution.

[2 marks]

5

Given the following Regression equations, 4X - 5Y + 33 = 0; 20X - 9Y - 107 = 0. Find the mean values of X and Y.

[2 marks]

6

Evaluate |A| = |[1, 2, 3], [4, 5, 6], [7, 8, 9]|

[2 marks]

7

A card is drawn at random from a pack of cards, what is the probability of getting (a) a black card and (b) a king.

[2 marks]

8

Find the simple aggregative price index number from the following data of 2015 taking 2014 as base year when current year quantity is taken as weight.

Commodities2014 Price2015 Price
A58
B46
C1012
D75

[2 marks]

9

Find the transpose of matrix A where A = [[1, -2], [4, 3]].

[2 marks]

10

The year of origin of the following trend line equation of production (in tonne's) is 2017. y = 40 + 1.5x. Estimate the production for the year 2033.

[2 marks]

Completed Group A