Mario earned three times as much money last year as his wife elena. the total amount that the two earned was 11,000. how much money did mario earn?

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