| 1 |
The mean deviation (M.D) of a normal distribution is ________. |
- A. 4/5 σ
- B. 5/4 σ
- C. 2/3 σ
- D. None of these
|
| 2 |
All odd order moments about mean are |
- A. unique
- B. zero
- C. different
- D. one
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| 3 |
The normal distribution is represented as_______ |
- A. N (μ,σ<sup>2</sup>)
- B. N (n,p)
- C. N (0,σ<sup>2</sup>)
- D. None of these
|
| 4 |
P ( | Z | > a) = |
- A. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">2</span><span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">ø(a) - 1</span>
- B. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">ø(a)</span>
- C. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">2 ø (-a)</span>
- D. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">1-ø(a)</span>
|
| 5 |
For normal distribution mean always lies between. |
- A. Median and mode
- B. Median and Q<sub>1</sub>
- C. Median and Q<sub>3</sub>
- D. None of these
|
| 6 |
All odd ordered moments about mean are ______ in a normal distribution. |
- A. Zero
- B. Unity
- C. Positive
- D. Negative
|
| 7 |
In case of normal distribution the area to the left of the mean and area to the right of the mean is |
- A. positive
- B. negative
- C. equal
- D. unequal
|
| 8 |
Total probability under the normal curve is |
- A. 1
- B. 0
- C. -1
- D. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">∞</span>
|
| 9 |
In a normal distribution,_____= μ + 0.64745 σ |
- A. Q<sub>1</sub>
- B. Q<sub>3</sub>
- C. μ
- D. σ
|
| 10 |
The Quartile deviation (Q.D) of a normal distribution is_______. |
- A. 4/5 σ
- B. 5/4 σ
- C. 2/3 σ
- D. None of these
|