Refer to the
following information for Questions 12 and 13.There are
1000 students in the senior class at a certain high school. The high school
offers two Advanced Placement math / stat classes to seniors only: AP Calculus and AP Statistics. The roster of the Calculus class shows 95
people; the roster of the Statistics class shows 86 people. There are 43 overachieving seniors on both
rosters.12.What is the probability that a randomly
selected senior is in at least one of the two classes?(10 pts)____________13.If the student is in the Calculus class
what is the probability the student is also in the Statisticsclass? (10 pts)