IC82 STATISTICS - 12
| Q1.The temperature recorded in centigrade is to be transformed to another measure in Fahrenheit with Formula:1.8 C + 32 = F. If the Mean and Standard Deviation of recorded temperature is 30 Degrees Celsius and 2.5 Degrees Celsius, respectively, convert the data into another unit of measurement, i.e., Fahrenheit. |
| a) 1.8amp;amp;deg;F |
| b) 3.2°F |
| c) 4.5°F |
| d) 6.8 and deg;F |
| Q2.In rolling a die, the sample space shall be numbers-1 to 6(consisting of 6 points) and these are examples of a ____. |
| a) Discrete sample space |
| b) Continuous sample space |
| Q3.The _____ of data is a highly specialized non-mathematical subject and it can successfully convey the underlying traits of the data of layman. |
| a) Cumulative frequencies |
| b) Approximation |
| c) Information system |
| d) Diagrammatic presentation of data |
| Q4.Which method is adopted where the budget for data collection is very small and the purpose of the investigation is to collect the data to assess rough estimates where a high degree of precision is not required? |
| a) Local Reports |
| b) Indirect oral investigation |
| c) Direct Personal Investigation |
| d) By schedules and Questionnaires |
| Q5.The cumulative frequency diagram is known as ____ and is useful to estimate the total frequency up to any given point variable. |
| a) Class-interval |
| b) Ogive |
| c) Distribution |
| d) Frequency |
| Q6.During a week, a Branch Office of Life Insurance Company has issued 61 Policies arranged in the order of Sum Assured(Figures in Thousand ) as under: Find average and median? |
| a) Average =120, Median = 120 |
| b) Average =130, Median = 130 |
| c) Average =140, Median = 140 |
| d) Average =150, Median = 150 |
| Q7.An Insurance company claims that its first-year lapse ratio does not exceed 30%. This statement is to be examined as to whether the claim made by the company is true by examining an adequate number of sample cases. Determine sample size to ensure that the difference between population proportion and sample proportion will be minimum at 99% confidence level with tolerance specification of 2%. For 99% confidence specification,z=2.58 |
| a) 100 |
| b) 200 |
| c) 250 |
| d) 350 |
| Q 8. Which is the further stage of two-stage sampling in which the selection of Samples undergoes multiple layers till the ultimate units are selected and at every stage, the selection in the layer will be on a random basis and ultimate units will also be selected on a random basis? |
| a) Two-stage Sampling |
| b) Judgement Sampling |
| c) Multi-Stage Sampling |
| d) Stratified Sampling |
| Q9.The probability function of Standard Normal Distribution is valid for which of the following circumstances? |
| a) The distribution is symmetrical |
| b) It is used in much of the statistical work concerning sampling |
| c) The distribution has two-parameter,viz., Mean and Standard Deviation |
| d) All of the above |
| Q10.A General Insurance Company wanted to estimate the proportion of Motor Insurance Policies renewed with them in the subsequent 7 years. A random sample of 200 policies showed that 155 policies were renewed with them. 1) Estimate the proportion of policies being renewed with them |
| a) 0.265 |
| b) 0.458 |
| c) 0.775 |
| d) 0.894 |