Probability

Student Survey: In a survey of 125 college students, it was found that of three newspapers, the Wall Street Journal, New York Times, and Chicago Tribune: 60 read the Chicago Tribune 40 read the New York Times 15 read the Wall Street Journal 25 read the Chicago Tribune and New York Times 8 read the New York Times and Wall Street Journal 3 read the Chicago Tribune and Wall Street Journal 1 read all three (a) How many read none of these papers? (b) How many read only the Chicago Tribune? © How many read neither the Chicago Tribune nor the New York Times?

Probability

A jar contains 3 white marbles, 2 yellow marbles, 4 red marbles and 5 blue marbles. Two marbles are picked at random. What is the probability that (a) both are blue (b) exactly 1 is blue (c) at least 1 is blue

Probability

If E and F are events with P ( E U F ) = 5/8, P (E ∩ F = 1/3, and P (E) = ½, Find: (a) P(E) (E has a straight line over it) (b) P (F) (c) P (F) (F has a straight line over it) detail each answer: (a) ½ (b) 11/24 (c) 13/24

Probability

The records of Midwestern University show that in one semester, 38% of the students failed math, 27% of the students failed physics, and 9% of the students failed math and physics. A student is selected at random. (a) if a student failed physics, what is the probability that he or she failed math? (b) If a student failed math, what is the probability that he or she failed physics? (c) What is the probability that he or she failed math or physics.

Probability

An automobile license number contains 1 or 2 letters followed by a 4 digit number. Compute the maximum number of different licenses.