Questions: Can we assume that each viewer's daily average is independent of the others'? What is the sample average daily view count? What is the sample standard deviation? Recall the central limit theorem: Regardless of the underlying distribution, xbar (the sample average of n samples) assumes the normal distribution with the same mean and std deviation = sigma/sqrt(n) of the true underlying distribution in the limit as n approaches infinity. Practically, this is true even when n >= 30. Therefore we would expect daily average views to assume a normal distribution. However, we observe that views <= 0 is impossible. Therefore, we say it is a truncated normal distribution. A histogram would have a roughly bell shape, but with a 'spike' in the smallest bin.