Total No. of Questions 10] [Total No. of Pages 01
BBM/BBA DEGREE EXAMINATION, MAY 2018
(Examination at the end of Second Year)
Second Year
Business Statistics (Part II)
Time 3 Hours Maximum Marks 70
Answer any five questions
All questions carry equal marks
Q1) What is primary data? Explain the primary data collection methods.
Q2) What is a Questionnaire? Explain the qualities of a good Questionnaire
Q3) Find out standard deviation for the following data
C.I 7.5-10.5 10.5-13.5 13.5-16.5 16.5-19.5 19.5-22.5 22.5-25.5 25.5-28.5 28.5-31.5 31.5-34.5 34.5-37.5
F 12 10 15 19 12 14 3 0 4 1
Q4) What is a graphical representation? Explain various graphs used in data analysis.
Q5) Find out the correlation coefficient between the variables supply index, price Index.
Supply Index 114 127 128 120 120 123 127 127 133 137
Price Index 108 104 104 106 100 98 99 99 97 92
Q6) What is regression? Explain the procedure of least-square method.
Q7) Write the procedure of testing of hypothesis in brief.
Q8) The sales figures for a business concern for the past 11 years are given below. Set a
suitable trend line.
Year 1980 81 82 83 84 85 86 87 88 89 90
Sales(in'000) 520 480 510 620 590 421 510 610 630 640 600
Q9) In a locality of 5000 people, 1200 are above 30 years of age and 3000 are females. Out of
1200 who are above 30 years of age, 200 are females. A person is choosen at random and
you are told that the person is a female. What is the probability that she is above 30?
Q10) Explain the structure of a research report in brief.