IC82 STATISTICS - 06
| Q1.Which of the following is the correct formula? |
| a) amp;amp;rho;^2 = Explained Variance / Total Variance of y |
| b) and amp;rho;^2 = Explained Variance * Total Variance of y |
| c) ρ^2 = Explained Variance + Total Variance of y |
| d) and rho;^2 = Explained Variance - Total Variance of y |
| Q2.x- variables is taking 10 Values as follows: 10,15,20,25,30,35,40,45,50 and 55. The Arithmetic Mean of x Variable is calculated as under: |
| a) 15.3 |
| b) 20.5 |
| c) 26.7 |
| d) 32.5 |
| Q3. Which of the following are components of Time Series? |
| a) Secular Trend |
| b) Seasonal Variation |
| c) Irregular variation |
| d) All of the above |
| Q4.Measures of Central Values are referred to as ______. |
| a) Measures of Location |
| b) Measures of Central Tendency |
| c) Either a or b |
| d) None of these |
| Q5.What can be defined as totality of all actual or conceivable objects of specified class under investigation and in mathematical language, it is the set of all elements on which information is desired? |
| a) Census |
| b) Sample |
| c) Population |
| d) Probability |
| Q6.Which of the following are Probability Distribution under Discrete Variables? |
| a) F-Distribution |
| b) Negative Binomial Distribution |
| c) Student's t-Distribution |
| d) Exponential Distribution |
| Q7.Any variations in a time series that cannot be attributed to secular trend or seasonal or cyclical variations, is known as ____. |
| a) Irregular Variation |
| b) Seasonal Variation |
| c) Secular Trend |
| d) Cyclical variation |
| Q8.Which components of time series can be defined as the underlying smooth or regular movement of the series over a long period of time? |
| a) Seasonal Variation |
| b) Secular Trend |
| c) Cyclical variation |
| d) Irregular Variation |
| Q9.The set of all the alternative acts is known as ___. |
| a) State space |
| b) Action space |
| c) Parameter space |
| d) None of these |
| Q10.Which of the following is correct formula for Inter-Quartile Range? |
| a) Inter-Quartile Range = Q_2 - Q_1 |
| b) Inter-Quartile Range = Q_3 - Q_1 |
| c) Inter-Quartile Range = Q_2 + Q_1 |
| d) Inter-Quartile Range = Q_2 + Q_1 |