Business Statistics question, Hons 3rd Year Exam-2021

Business Statistics question

Hons 3rd Year Exam-2021

National University 

 

Management 

Subject Code: 232603

Subject: Business Statistics

 

Group A

(Answer any ten questions)

Marks – 1 × 10 = 10

a) What is business statistics?

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

(Answer any five questions)

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