Jemma filled one-fourth of a barrel with compost on Saturday. Then she filled the remaining space with 4{,}200\text{ g}4,200 g4, comma, 200, start text, space, g, end text of compost on Sunday. How many kilograms of compost are in the barrel?

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