# Business Statistics question, Hons 3rd Year Exam-2021

Hons 3rd Year Exam-2021

National University

Management

Subject Code: 232603

Group A

Marks – 1 × 10 = 10

Ans: Business Statistics is a science assisting us to make, decision under uncertainties based on some numerical and measurable scale.

b) What is population?

Ans: A population is the collection of all possible objects having certain characteristic under a study.

c) When AM, GM and HM are equal?

Ans: If each value of a observation are equal then arithmetic mean, geometrie mean & harmoniemean are equal.

d) which measure suitable for measures of dispersion?

And:

e) What is correlation?

And:

f) What is the range between 1 and -1?

Ans: Range Highest value-Lowest value

= 1- (-1)

= 2

g) What is regression analysis?

And: Regression Analysis is a mathematical measure of the average relationship between two or more variables in terms of original units of the data.

h) What is sampling?

And: The methods for selecting sample from a Population is known in Sampling.

i) Which test is known as small test?

And:

j) What is Kurtosis?

And:

k) What do you mean by r+1?

Ans: The value of r+1, Means the perfect positive correlation.

l) What is Index Number?

And:

Group B

Marks – 4 × 5 = 20

2. Discuss the scope of business Statistics.

3. Describe the sources of secondary data.

4. Distinguish between absolute and relative measure of dispersion.

5. Draw a pie-chart from the following data:

Cost of materials Tk. 40,000; Cost of labour