Which of the following statements is (are) generally true assuming a mound shaped distribution?
The mean of a positively skewed distribution will be greater than its median
A negatively skewed distribution will tend to have more extreme values on the left side of the distribution
A positively skewed distribution could be centered on zero
The mean, median and mode are never the same if the distribution is skewed in either direction
The mean of a positively skewed unimodal distribution will be greater than its mode