The number of automobiles crossing a certain intersection during any time interval of length t minutes between 3:00 P. M. and 4:00 P. M. has a Poisson distribution with mean t. Let W be time elapsed after 3:00 P. M. before the first automobile crosses the intersection. What is the probability that W is less than 2 minutes

Solve the system of equations y= 3/2 - 1, -x+ y =-3

Steve had 48 chocolates but he decided to give 8 chocolats to each of his f coworkers. how many chocolates does steve have left

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