Bachelor Of Management Studies (BMS) SEM I 2016 2017 March 2017 BUS.STASTICS Question Paper - Mumbai University | munotes

Questions asked in this paper

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1. Q2 attempt both the sub-parts A andB
2. Q3 Figures to the right indicate marks
3. Q4 Use of non-programmabie calculator is allowed
4. Q5 Graph Paper will be provided On request the blanks with the correct alternative(attempt any eight) (08)
   • i) The average that is affected by sampling fluctuations is
   • ii) Or more characteristics are to be represented simultaneously, bar diagram is used,
   • iii) When the data is Classified with reference to time it is called classification
   • iv) Ifthe sample points of two events taken together constitute the Sample space of an experiment, then such Events are called the index number is Calculated for more than one commodity it is called Vi) criterion we Choose the Strategy with maximum average pay-off as the best Strategy,
   • vii) Variations occur due to weather Or Customs
   • viii) When the regression equation of Price on demand is used, price is the Variable,
   • ix)” deviation is when calculated from median x} For any Probability mass function, sum of all the Probabilities js equal to 4
5. Q1 B) State following Statements are True or False. If the statement is false then give reason.(attempt any seven ) 7 marks
   • i) Quartile absolute Measure of dispersion,
   • ii) Variance is the Square of standard deviation
   • iii) The coefficient of correlation is always positive
   • iv) Median can be located Braphically with the help of
   • v) With respect to Index number, the year for which comparisons are made or desired is called Current year,
   • vi) Maximin criterion we select the course of action with maximum value from amongst the minimum pay the best-action, A random variable which can take all Possible values over an interval is called a discrete random Variable,
   • Q.P. Code :00887
   • x) The class Mark of a Class interval is = (lower limit + Upper limit),
6. Q2 Attempt either A or B
   • p) Drawa More than Ogive for the following data, Hence fing i) Median Marks ii) No, of students Securing Marks above 60
   • q) The mean of 10 Observations Was found to be 20. Later on it Was that the Observations 24 and 34 were wrongly noted 42 and 54, Find the Corrected Mean,
7. Q2 B)p) if the median for the following distribution is 33, find the Missing frequency (
8. Q2 q)i Calculate the mode for the following data, The average Salary of 1209 employees factory is Rs.12000. the average Salary of 29 Officers js Rs.16000 and the average Salary of 49 Clerks js find the average Salary of the remaining
9. Q3 Attempt either A or B
   • p) Calculate Mean deviation from mean and its Coefficient for the following data No. of students 16
   • q) Caiculate Spearman’s rank Correlation Coefficient for the following data, 7
   • P) in which of the following Subjects, there js MOre variation in Marks.( use Coefficient of Variation) 10
   • Q.P. Code :00887
   • q) a bivariate distribution, the following results are obtained: Mean value of X = 65, mean value of Standard deviation of x =4.7, standard deviation of y = 5.2 Obtain the regression equation of x on y and hence obtain the most probable value of x when y = 50 5
10. Q4 Attempt either A or B
    • p) following table represents assets of a multi-national company in crores of Rs. Fit a straightline trend to the data and hence estimate the figures for the year 2008 7
    • q) Calculate Dorbish Bowley’s and Marshall Edgeworth’s index number for the following data. pi) Calculate five yearly moving averages for the following data. (04) p ii) Calculate income for the following data. (03) Calculate the cost of living index number for the following data. (04) 8
    • Q.P. Code :00887 For the following data, calculate the index number by the following methods
    • a) Weighted average of price relatives method Commodity Base year price(in Rs.) Current year price (In Weights
11. Q5 Attempt either A or B
    • p) the following conditional pay off table, Select the best decision using EMV and EOL criteria
12. Q5 q)i) 4 random variable X has the following probability distribution Find the value of k and hence find E(X) and V(X) From past experience it is known that A can solve 3 examples out of givenS out of given 7. An example is given to both of them to solve independently: Find the probability that
    • a) The example remains unsolved
    • b) The example is solved
13. Q5 B) Write short notes on (attempt any three) ( u Functions of statistics Demerits of mean Absolute and relative measures of Dispersion Requisites of a good questionnaire

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