What is the distance between (3,5.25 and (3,-8.75)

Find the solution of system of equation y= x-4 y=4x+2

Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1.

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is