Bachelor Of Management Studies (BMS) SEM I 2017 18 Nov 2017-18 BUS.STAT Question Paper - Mumbai University | munotes

Questions asked in this paper

• ili) Figures to the right indicate marks

1. Q1 A Fillin the blanks with the correct alternative (Attempt any Eight) 8 marks
   • a) The data collected for the first time is known
   • b) The histogram can be used to locate graphically the value of The middle most observation that divides the entire distribution into two equal parts is known as (Mean, Median, Mode)
   • d) If the value of coefficient of variation is more, then the consistency of the data is
   • e) The correlation is positive if (x increases as y increases, x increases as y decreases, none of these)
   • f) A. LS Of values of a phenomenon arranged in order of their occurrence. (time series, index number, none of these)
   • g) The index number for base period taken as 100
   • h) A variable X capable of taking discrete values x1,x2, .xn with respective probabilities is called as .random variable
   • i) For a statistical experiment every possible outcome is Maximin criterion is a decision making under
2. Q1 B whether the following statements are True or False. (Attempt any seven) 7 marks
   • a) A bivariate frequency distribution represents frequencies with reference to two variables at a time Pie diagram is represented by using circles Quartiles are measures of central tendency
   • d) Standard deviation is denoted by r
   • e) A and B are exhaustive events then AUB is a null set
   • f) Asymmetric distribution has the values of all measures of central tendency
   • g) of the groups or selections which can be made by taking some or all of a number of things without reference to the order of the things in each group is
   • h) There are four components of time series
   • i) correlation coefficient is zero then the association between the two variables is
   • j) — Ifthe upper limits are excluded then it is called inclusive type of class intervals
   • Q.P. Code : 25283
3. Q2 1) Calculate Median and Mode for the following data 8 marks
   • ii) Draw a Multiple Bar Diagram for the regional percentage of viewers for a popular T.V. serial on D.D. Metro for 3 months 7
4. Q2 B_ i) Represent the following data by a Histogram and a Frequency Curve (plot on the same graph) 8 marks
   • ii) Find the missing frequency if the mean is 21.9 7
5. Q3 i) Calculate Karl Pearson’s Co-efficient of correlation for the following data: 1i) Calculate Mean Deviation from Mean and its co-efficient for the following data: (8) 7 marks
6. Q3 B_ i) Find the regression equation of x on y for the following data and hence estimate Calculate rank correlation co-efficient from the following data representing marks in Maths (X) and Accountancy (Y) 8 marks
7. Q4 line by the method of least squares and estimate the trend for the 10 marks
   • Q.P. Code : 25283 1i) Calculate Chain base Index Number for the following data (5) Calculate Laspeyre’s Paasche’s, and Fishers’ index number for the following (8) Calculate 3 Yearly Moving Averages for the following time series. (7)
8. Q5 A) i) contains 5 blue and 4 red balls. 4 balls are selected at random from the box. Find the probability that i) exactly 3 red balls are selected 5 marks
   • ii) at least three red balls are selected For the following payoff table, find the optimal decision using 1) Maximin (10) Course States of
9. Q5 B any three out of five. 15 marks
   • i) Distinguish between Primary and Secondary Data Explain the following terms i) Experiment i1) Sample Space iii) Exhaustive Write short notes on 1) Wholesale Price Index ii) Family Budget Method
   • iv) Define for a random variable i) Expectation Variance
   • v) What time series? Describe the various components of a time series with

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