# In a class with 50 students. 25 of the students are female, 15 of the students are mathematics major

In a class with 50 students. 25 of the students are female, 15 of the students are mathematics majors, and 10 of the mathematics majors are female. If a student in the class is to be selected at random, what is the probability that the student selected will be female or a mathematics major or both? 0.4 0.5 0.6 0.8 On an exam for a class with 32 students. the mean score was 67.2 points. The instructor rescored the exam by adding 8 points to the exam score for every student. What was the mean of the scores on the restored exam? A new computer graphics company employs 10 programmers. The company decides to expand into digital animation and needs to transfer 3 of the programmers into the new department. How many different combinations of 3 programmers can be chosen to transfer to new department? 3 30 120 840 The faces of a fair cube are numbered 1 through 6; the probability of rolling any number from 1 through 6 is equally likely. If the cube is rolled twice, what is the probability that an even number will appear on the top face in the first roll or that the number 1 will appear on the top face in the second roll? 1/12 7/12 2/3 3/4 If R = {x|x > 0} and S = {x|x