What is the difference in size between the biggest button and the smallest button?

1 1/4 because 1 1/2 converts to 1 2/4 - 1/4 which then equals 1 1/4

Ifound this on google “a skewed (non-symmetric) distribution is a distribution in which there is no such mirror-imaging. a "skewed right" distribution is one in which the tail is on the right side. a "skewed left" distribution is one in which the tail is on the left side. the above histogram is for a distribution that is skewed right.” i hope this you for what your looking for