The table below describes the preferred soda choice of high school students. Freshmen Sophomore Junior Senior Total Pepsi 431 50 71 49 601 Coke-Cola 382 48 86 39 555 Total 813 98 157 88 1156 If one of the 1156 people is randomly selected, find the probability that the person is a Pepsi fan or a senior. O a. 0.557 O b. 0.554 O c. 0.511 O d. 0.596Find the indicated probability. The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a pregnancy lasts at least 300 days? 0 a. 0.4834 0 b. 0.0164 0 (2. 0.9834 0 d. 0.0179 Find the indicated probability. A study conducted at a certain college shows that 57% of the school's graduates find a job in their chosen field within a year after graduation. Find the probability that among 9 randomly selected graduates, at least one finds a job in his or her chosen field within a year of graduating. O a. 0.999 O b. 0.570 O c. 0.994 O d. 0.111\fFind the indicated z score. The graph depicts the standard normal distribution with mean 0 and standard deviation 1. Shaded area is 0.4013. O a. -0.57 O b. 0.57 O c. -0.25 O d. 0.25