B.Com. (Financial Management) SEM II 2022 2023 Apr 2023 BUSINESS STATISTICS Question Paper - Mumbai University | munotes

Questions asked in this paper

• N.B. (1) Figures to the right indicate full marks

1. Q1 (A) Fill in the blanks using correct alternatives:(Any Eight) 8 marks
   • (a)Primary only (b)Secondary only (c)Primary and secondary both (d)None of these
   • (2) Primary data as compared fosecondary dataare
   • (3) Which of the following facts is not quantitative?
   • (4) The word ‘mean’
   • (5) The value which occurs with the maximum frequency iscalled
   • (6) Which measure of dispersion is quickest to calculate?
   • (a)First 50% of the series (b)Last 50% of the series
   • (c)Middle 50% of the series (d)Any 50% of the series
   • (8) If variable Y tends to increase as variable X increases, thereis
   • (c)No correlation (d)Inverse correlation
   • (a)Less (b)Greaterthan (c)Equalto1 (d)Equal to 0
   • (10) The slopes of the regression
   • (B) State whether following statements are True or False:(Any Seven) 7
   • (1) Questionnaires are form of primary data
   • (2) Diagrams are useful in drawing attention of the public
   • (3) Median can be located by histogram
   • (4) Decile means we divide the distribution into 4 equal parts VCD/ FYFMG SEMII BUSINESS STATISTICS HRS 75 MARKS
   • (5) Mode is the most frequently occurring value in a data set
   • (6) Standard deviation is equal to the square root of the variance
   • (7) Range is difficult to
   • (8) Coefficient of correlation lies between 0 and 2
   • (9) If then there is a perfect relationship between the two given variables
   • (10) The slopes of the regression lines of y on x is
2. Q2 (A) Draw a multiple bar diagram and sub-divided diagram. 8 marks
   • (B) Find median production from the distribution given below. 7
   • (C) Draw a Histogram and find the mode graphically. 8
   • (D) Prepare a frequency distribution for the following data taking class intervals 11-15, 16-20, 21-25 and so on. (7)
3. Q3 (A) Calculate quartile deviation for the following data giving fees of 52 play groups. 8 marks
   • (B) Find fifth decile (Ds) and percentile for the following data. if VCD/ FYFMG SEMII BUSINESS STATISTICS 23 HRS 75 MARKS 7
   • (C) The following data is given for weights of boys and girls in the class. Find combined mean and combined standard deviation. (8) Average weight of boys = 60 kg. , Average weight of girls = 45 kg Variance of weight of boys = 9 kg? , Variance of weights of girls = 4 kg” No. of boys = 100, No. of girls = 50
   • (D) Calculate and mode of the following data. 7
4. Q4 (A) Find coefficient of correlation from the following data. 8 marks
   • (B) Find both regression equations from the following data. 7
   • (C) Find the regression equations from the following data. 8
   • (D) Calculate standard deviation and coefficient of variation for the following data. 7
   • (A) Write merits and demerits of median. 8
   • (B) What are the requisites of a good questionnaire? 7
   • (C) Answer any three of the following. 15
   • (i) Write merits and demerits of standard deviation
   • (ii) Short note on advantages of sampling
   • (iii) What is secondary data? What are the sources of it?
   • (iv) What are limitations of statistics?
   • (v) Explain any three functions of statistics

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