All of the 4 distributions are skewed from a normal distribution, with skewness deviating from 0. Three of them are highly skewed with positive skewness (Table ), indicating that the distributions have longer tails on the right side than those on the left (Figure ). The other one is moderately skewed with a negative skewness and a longer tail on the left. The excess kurtoses are all positive, meaning that compared to a normal distribution, the tails are longer and heavier.