B.Com. (Financial Management) SEM II 2018 19 April 2018-19 BUSINESS STATISTICS Question Paper - Mumbai University | munotes

Questions asked in this paper

1. Q10 Most pret Time : 2.30 Hours Marks : 75 NB : All Questions are Compulsory
2. Q1 A) Choose the correct Alternative. (Any 8 ) 8 marks
3. Q1 If mode of a data is 45 mean is 27 then median is
4. Q2 If Qi=40 and Q3=55, then Coefficient of quartile deviation is
5. Q3 Relative measures in Measures of dispersion are also considered as
   • a. Coefficient of deviation b. coefficient of averagec. Coefficient of variation
6. Q4 is the measure of central tendency
7. Q5 used to present data involving one variable
8. Q6 Which of the following cannot be determined graphically
9. Q7 Which of the following is not a possible value of the correlation coefficient
10. Q8 on numerically measurable characteristic is known as
11. Q9 weight is variable
12. Q10 The limits for correlation coefficient are
13. Q1 (B) State whether the following statements are ‘True’ or ‘False’.(Any 7) 7 marks
14. Q1 The correlation between two variables is symmetric
15. Q2 The coefficient of correlation is always positive
16. Q3 Scatter diagram cannot give the degree of relationship
17. Q4 Median is based observations The class mark of class interval is( lower limit + upper limit)/2
18. Q7 Quartile deviations are not affected by extreme values
19. Q8 Statistics deals with qualitative data
20. Q9 not affected by extreme value
21. Q10 There is no limits for karl pearsons coefficient of correlation
22. Q2 A) For the following frequency distribution find 8 marks
    • i) Class Boundaries, Cumulative frequencies marks
    • B) 7.marks Draw a multiple bar diagram for the following:
23. Q2 P) Find the mean and median for the following data: 8 marks
    • Q) Draw a Histogram for the following data. 7
24. Q3 A) Calculate standard deviation and coefficient of variation from the following data 8 marks
    • B) The mean age of of 100 children was 9.35 years. The mean age of 25 of them was 8.75 years and that of another 65 was. 10.51 years. What was the mean age of the remainder? 7
25. Q3 P) find the missing frequency of the following data if mean is 54. 8 marks
    • Q) For the following data find three quartiles and quartile deviation. (in Rs. thousand) 7
26. Q4 A) Find the rank correlation co-efficient between x and y and comment on its value: marks
    • B) Find both are regression equations from the following data Mean value of x=65, mean value of y=53 Standard deviation of x=4.7, Standard deviation of y=5.2 7
27. Q4 P) using least square regression method, find regression equation of y. Estimate x when y=94 8 marks
    • Q) The following information pertains to marks obtained by students of two divisions A and B Number of students 40 60
    • a) Find the standard deviation of the combined data
    • b) Which of the two distributions is more variable?
28. Q5 Answer the following:
    • (A) Explain the term correlation and describe types of correlation. 8
    • (B) Explain the word “statistics” and describe the various uses of statistics. 7
29. Q5 Write short notes on: (Any three) 15 marks
    • (a) Graphs and diagrams
    • (b) Merits. and demerits of arithmetic mean
    • (c) Correlation
    • (d) Primary and secondary data
    • (e) Quota sampling

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