Positive skew, also known as right skew, occurs in a distribution where most values are concentrated on the left side, with a tail extending to the right. This means that while the majority of data points are lower, there are a few higher values that pull the average to the right. In a positively skewed distribution, the mean is typically greater than the median, which is the middle value when data is arranged in order. This type of skewness is often seen in real-world scenarios, such as income distribution, where a small number of individuals earn significantly more than the majority.