| 51. | The class of variable which can accept only the values from set of integers is classified as |
| a. | discrete random variable |
| b. | continuous random variable |
| c. | posterior random variable |
| d. | interior random variable |
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Answer: (a).discrete random variable
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| 52. | If the total number of elements with some specific characteristics is 18 from a population of 40 and the sample is drawn without replacement with the size of 4 then the mean of hyper geometric probability distribution is |
| a. | 4.8 |
| b. | 1.8 |
| c. | 2.8 |
| d. | 3.8 |
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Answer: (b).1.8
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| 53. | If the rate of occurrences in Poisson probability distribution is smaller and the occurrences have large numbers then the distribution tends to be |
| a. | negatively skewed and mesokurtic |
| b. | positively skewed and mesokurtic |
| c. | symmetrical and leptokurtic |
| d. | symmetrical and mesokurtic |
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Answer: (d).symmetrical and mesokurtic
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| 54. | The selling price of product is subtracted from purchasing price of product to calculate |
| a. | profit of product |
| b. | loss of profit |
| c. | cumulative average |
| d. | weighted average |
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Answer: (a).profit of product
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| 55. | The process in which the trials are statistically independent and each trial of event has only two outcomes is classified as |
| a. | Bernoulli process |
| b. | Bayes process |
| c. | functional process |
| d. | independent limited process |
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Answer: (a).Bernoulli process
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