Which of the following statement/s is/are true?
1. If bulk of values are less than mean, the distribution is negatively skewed
2. If bulk of values are greater than mean, the distribution is positively skewed.
3. A perfect symmetrical normal distribution has zero skewness.
1
Only 1 is true
2
Only 2 is true
3
Only 3 is true
4
2 and 3 are true