| 1 |
If x is discrete random variable, then the function f (x) is. |
- A. A probability function
- B. A density function
- C. A probability density function
- D. A distribution function
|
| 2 |
The probability of success ------------ from one trial to another when trials are dependent |
- A. Remains constant
- B. Is changed
- C. One
- D. Zero
|
| 3 |
Which of the following is true for binomial distribution |
- A. Mean > variance
- B. Mean < variance
- C. Mean = variance
- D. Mean + standard deviation
|
| 4 |
The number of possible outcomes in Bernoulli trial is |
- A. Three
- B. Four
- C. Two
- D. One
|
| 5 |
The hypergeometric distribution has -------------- parameters |
- A. One
- B. Two
- C. Three
- D. Four
|
| 6 |
Each trial of binomial experiment results in an outcome which can be classified in two categories |
- A. Head or tail
- B. Ace or six
- C. Success and failure
- D. None of these
|
| 7 |
A copntinuous probability distribution may be represented by. |
- A. A table
- B. a graph
- C. A mathmethical equation
- D. Botha b and c
|
| 8 |
The probabilyt that a continous random varaibe 'x ' takes on specific value of x is. |
- A. Greater thaan zero
- B. Less than zero
- C. Equal to Zero
- D. 0 to 1
|
| 9 |
Which of the following case is true for hypergeometric distribution. |
- A. Probability remains constant for all trials
- B. Probability changes
- C. successive trials are dependent
- D. Both (B) and (C) but not (A)
|
| 10 |
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>
|
