| 81. | Considering the normal distribution, the spread is decreased and the height of the curve is increased for the |
| a. | larger value of standard deviation |
| b. | smaller value of standard deviation |
| c. | smaller value of variance |
| d. | larger value of variance |
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Answer: (b).smaller value of standard deviation
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| 82. | In the classification of probability distributions, the 'Erlang distribution' is also called |
| a. | alpha distribution |
| b. | beta distribution |
| c. | gamma distribution |
| d. | exponential distribution |
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|
Answer: (c).gamma distribution
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| 83. | The formula of calculating mean for the negative binomial probability distribution is |
| a. | q ⁄ p |
| b. | P ⁄ Q |
| c. | p ⁄ r |
| d. | r ⁄ p |
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Answer: (d).r ⁄ p
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