Statistics

D. There are 13 freshmen and 19 sophomore students in a classroom. We randomly select two students. Suppose the students were selected with replacement. a} If the first student was a freshman, what is the probability that the 2nd student is also a freshman? b) If the first student was a sophomore, what is the probability that the 2nd student was a freshman? Suppose the students were selected without replacement. c] If the first student was a freshman, what is the probability that the 2nd student is also a freshman? d) If the first student was a sophomore, what is the probability that the 2nd student was a freshman? Be sure to include at least 4 decimal places, if needed. E. Let P(U)=0.42 and P(V)=0.08. Events U and V are mutually exclusive. Find P{U or V) 1. Use the spinner below. P[4or11)=