1. Eight percent of all college graduates hired by companies stay with the same company for more than five years. The probability, rounded to four decimal places, that in a random sample of 13 such college graduates hired recently by companies, exactly 4 will stay with the same company for more than five years is: 2. Sixty percent of all children in a school do not have cavities. The probability, rounded to four decimal places, that in a random sample of 9 children selected from this school, at least 5 do not have cavities is: Enter your answer in accordance with the question statement 3. Thirty percent of law students who sit for a bar exam pass it the first time. The probability, rounded to four decimal places, that in a random sample of 15 law students who will sit for the bar examination, at most 3 will pass it the first time is 4. Find the area under the standard normal curve to the left of z=-1.55 Round your answer to four decimal places. 5. Find the area under the standard normal curve to the right of z=2.37. Round your answer to four decimal places.