TRB MODEL QUESTIONS FOR MATHS
| 36. |
In a binomial distribution, if the mean is 8 and variance 6, then the number of trials is |
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| 37. |
If mean of a Poisson distribution is 16 then its standard deviation is |
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| 38. |
Distance between two complex numbers (2 + 2i) and (3 + i) is |
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| 39. |
The other name for one–one function is |
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- A. injection
- B. bijection
- C. surjection
- D. none of these
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| 40. |
In a group of 1000 people, there are 750 who can speak Hindi and 400 can speak English. How many can spoke Hindi only? |
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- A. 150
- B. 300
- C. 450
- D. 600
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