John missed 4 problems on a test but did 75% of them correctly. how many problems were there in the test?

4 is 25% of 16.
I hope this helps :)

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