Five numbers have an average of 16. if the first four numbers have a sum of 68, what is the fifth number

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Which is f(5) for the function –2x2 + 2x - 3?