A recreational park is built near Buffalo Creek. The stream can carry 200 m3/s, which is the peak flow of the 50-yr storm of the watershed. Find the following. a) The probability that the park will flood next year b) The probability that the park will flood at least once in the next 15 yr c) The probability that the park will flood five times in the next 15 yr d) The probability that the park will flood ten times in the next 15 yr.

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0