| 1 |
In binomial distribution, the random variable has a range: |
- A. 0,1,2...................n
- B. 0,1,2,......+∞
- C. -∞ to +∞
- D. ∞ to +0
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| 2 |
The binomial distribution is symmetrical when: |
- A. P > q
- B. p = 1/2
- C. Probability of success & probability of failure are equal
- D. Both (B) and (C)
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| 3 |
The binomial distribution is symmetrical if |
- A. p = 1/2
- B. P > 1/2
- C. p < 1/3
- D. P <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">≠ </span>q
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| 4 |
The number of possible outcomes in Bernoulli trial is |
- A. Three
- B. Four
- C. Two
- D. One
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| 5 |
Binomial distribution is positively skewed |
- A. P < 1/2
- B. P > 1/2
- C. P = 1/2
- D. P < q < <sup>1</sup>/<sub>2</sub>
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| 6 |
The probability of success changes from trial to trial, is the property of: |
- A. Binomial experiment
- B. Hypergeometric experiment
- C. Both A and B
- D. None of these
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| 7 |
If we do not replace the draw cards back into the pack before the next draw, the used probability distribution will be: |
- A. Binomial
- B. Hypergeometric
- C. Both binomial & hypergeometric
- D. None of these
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| 8 |
Random numbers can be generated mechanically by |
- A. By use of digital computers
- B. Probgrammable calculators
- C. Ordinary calculators
- D. Both a and b
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| 9 |
Mean of hypergeometric distribution is |
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| 10 |
If X and Y are independent random variables , the E (XY) is equal to. |
- A. E(XY)
- B. E(X) E(Y)
- C. XE(Y)
- D. YE(X)
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