What did the teenage yardstick say to its parents

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

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

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.