John hiked down a canyon road for an hour that dropped in elevation 1,805 feet. then he walked up a canyon for an that ascended 1,470 feet. if he started at sea before he began walking, what was his total change in elevation after his two hours of walking

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