There are 450 students in my high school. 39 students are taking AP statistics and 86 students are taking AP calculus. 12 students are
taking both AP statistics and AP calculus. If a student were to be
selected at random from the whole school, what is the probability of
the student chosen taking only AP statistics? Give your answer as a
decimal.

Will give the box plots below show the math scores of students in two different classes: class a 55 72 75 89 95 class b 55 70 75 94 100 based on the box plots, which statement is correct? a: the median score of class a is greater than the median score of class b. b: the lower quartile of class a is greater than the lower quartile of class b. c: the upper quartile of class a is greater than the upper quartile of class b. d: the maximum score of class a is greater than the maximum score of class b.