| 1 |
The shape of the normal distribution is like |
- A. J.
- B. L
- C. bell
- D. circle
|
| 2 |
Second moment about mean is also called |
- A. mean
- B. variance
- C. skewness
- D. standard deviation
|
| 3 |
The probability density function has ------------------ value for every value of x. |
- A. negative
- B. positive
- C. minimum
- D. maximum
|
| 4 |
In normal distribution. |
- A. Mean > median > mode
- B. Mean = median = mode
- C. Mean < median < mode
- D. None of these
|
| 5 |
In a normal distribution β<sub>1</sub> = 0 and β<sub>2</sub> = __________. |
|
| 6 |
The point of inflection in normal distribution are _______. |
- A. μ - σ, μ + σ
- B. μ - σ, μ + 2σ
- C. μ, σ
- D. None of these
|
| 7 |
All odd ordered moments about mean are ______ in a normal distribution. |
- A. Zero
- B. Unity
- C. Positive
- D. Negative
|
| 8 |
P(μ-2σ < X=< μ + 2σ)= |
- A. 0.6827
- B. 0.9545
- C. 0.9973
- D. 0.9827
|
| 9 |
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
|
| 10 |
The moment coefficient of skewness is |
- A. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">β<sub>1</sub></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;">β<sub>2</sub></span>
- C. S<sub>k</sub>
- D. m<sub>3</sub>
|