IC82 STATISTICS - 03
| Q1.The Statistical errors arise due to many factors like the inappropriate definition of the unit of measurements, the bias of the investigator inherent instability of the collected data. These errors are known as _____. |
| a) Errors of origin |
| b) Errors of inadequacy |
| c) Errors of manipulation |
| d) None of these |
| Q2.In frequency distribution of statistical data, the frequencies are derived for each Class-Interval and in the statistical investigation, the investigator is interested to know the _____, up to a given point in Class-Intervals. |
| a) Collecting information |
| b) Cumulative frequencies |
| c) Dimensional diagrams |
| d) None of these |
| Q3.Which are period in nature and involve oscillatory movements but they extend over a period of several years, and do not recur with any predictable regularity? |
| a) Secular Trend |
| b) Seasonal Variation |
| c) Irregular Variation |
| d) Cyclical variation |
| Q4.Under which variables, the grouping of Variables in the Group of 2 or 3 can be done with totaling of the frequencies of the Group and in each of grouping, the Variables under the Group having highest frequencies will be underlined as a Modal Group? |
| a) Continuous series |
| b) Discrete Variables |
| c) Both a and b |
| d) None of these |
| Q5.The cumulative frequency is projected in how many ways? |
| a) One |
| b) Two |
| c) Three |
| d) Four |
| Q6.The General Insurance Company had made forecasting of fire claims of Rupees 250 Crores during the year in Budget Planning. At the end of the year, the actual claims paid were to the tune of Rupees 266 crores. |
| a) 2% |
| b) 4.4% |
| c) 5.2% |
| d) 6.4% |
|
e |
| Q7.To decide whether a discrete random variable has a Binomial Probability distribution, it should satisfy which of the following characteristics? |
| a) The experiment should consist of 'n' number of identical trials |
| b) There should be only two possible outcomes of each trial, viz., Success or Failure. |
| c) Each trial of the Bernoulli process is an independent trial |
| d) All of the above |
| Q8.The General Insurance Company had made forecasting of fire claims of Rupees 360 Crores during the year in Budget Planning. At the end of the year, the actual claims paid were to the tune of Rupees 378 crores. |
| a) 5% |
| b) 10% |
| c) 15% |
| d) 20% |
| Q9.If the interval scale has an absolute zero point in the sense that the numeral 0 represents complete absence of the characteristic being measured, the scale is called ___. Only with this level of scale, meaningful ratio between two numbers can be computed. |
| a) Ordinal Scale |
| b) Interval Scale |
| c) Ratio Scale |
| d) Nominal Scale |
| Q10.The height of 50 students is recorded in ascending order as below(in Centimeters) . Find Mean and Median? |
| a) Mean = 167.5, Median = 162.5 |
| b) Mean = 167.5, Median = 164.5 |
| c) Mean = 167.5, Median = 169.5 |
| d) Mean = 167.5, Median = 175.5 |