Business Statistics Question Paper of 3rd Semester BBA Download Previous Years Question Paper 11

Roll No.

Total No. of Questions : 07

BBA (Sem.–3rd)

BUSINESS STATISTICS

Subject Code : BB-304

Paper ID : [C0216]

Time : 3 Hrs.

INSTRUCTION TO CANDIDATES :

1. Section –A, is Compulsory.

2. Attempt any four questions from Section-B.

Section –A

1.     Write short notes on

a.     Less than and more than Ogives

b.     Frequency Polygon.

c.      Meaning of dispersion

d.     Three properties of a good measure of Central Tendency.

e.      Properties of Standard Deviation.

f.       Why there are two Regression lines?

g.     Any there are two Regression lines?

h.     Baye’s Theorem.

i.       Five characteristics of Normal distribution

j.       Seasonal Variations.

Section-B

2.     Calculate Mean, Median and Geometric Mean of the following Data:

Mid Value	15	25	35	45	55	65
Number of students	8	12	9	15	10	6

3.     Which factory has a more consistent wage structure?

Daily wages	10-15		15-20	20-25	25-30	30-35	35-40
Number of worker in factory A	15	30		44	60	30	21
Number of worker in factory B	25	40		60	35	20	10

4.     Calculate Karl Pearson’s Coefficient of Correlation between rainfall and Yield and also find two Regression Equations.

Rainfall	10	15	20	25	30	35
Yield	8	12	15	20	6	9

5.     Define time series. What are its various components? Explain in detail.

6.     What average price as the base. Calculate the price index using (a) Simple Aggregate Method (b) Average of Price Relative method.

Quantity purchased (in Kgs.) per Rupee

Commodity	2005	2006	2007	2008
A	15	10	8	6
B	18	14	11	9
C	12	10	7	5
D	20	16	15	8

7.       

a.     A speaks the truth in 60% and Bin 75% of the cases. Given that they have made the same statement. What is the probability that both are speaking the truth.

b.     The Wages of 10,000 worker were found to be normally distributed with mean R.s 2000 and Standard Deviation R.s 120. What was the highest wages amongst the poorest 1000 workers.