| 1 |
Pearson's co-efficient of skewness is positive when distribution is |
- A. Negatively skewed
- B. Positively skewed
- C. Symmetrical
- D. Leptokurtic
|
| 2 |
Fist moment about origin in is always equal |
- A. Mean
- B. Variance
- C. Zero
- D. 1(One)
|
| 3 |
In a symmetrical distribution the coefficient of skewness is equal to. |
- A. -1
- B. +1
- C. 0
- D. None of these
|
| 4 |
Which of the following is a relatie measure of dispersion. |
- A. Standard deviation
- B. Variance
- C. Coefficient of variation
- D. All of these
|
| 5 |
Quartile Co-efficient of skewness is also called as |
- A. Median co-efficent of skewness
- B. Pearson's 1st co-efficient of skewness
- C. Pearson's 2nd co-efficient of skewness
- D. None of these
|
| 6 |
Second moment abut mean is. |
- A. 0
- B. 1
- C. variance
- D. Standard deviation
|
| 7 |
Which of the following statements is correct. |
- A. Every symmetrical curve is measokurtic
- B. Standard deviation is the mean squared deviations from the mean
- C. The standard deviation of a constant is constant
- D. Teh second moment about zero equals variance.
|
| 8 |
In a symmetrical distribution, the coefficient of skewness will always be. |
- A. Negative
- B. zero
- C. 1
- D. -1
|
| 9 |
If b<sub>2</sub> = 3, then the distribution is: |
- A. leptokurtic
- B. Platykurtic
- C. Normal
- D. None of these
|
| 10 |
The distribution is positively skewed if. |
- A. Mean < Mode
- B. Mean > Mode
- C. Mean > Median
- D. Both b and c
|