statistics makeup

I need help on the statistical problems of a few. Could someone help me please?
8. Solve the problem. Four students drive to school in the same car. The students say they were late to school and missed a test because of a puncture. In the makeup test, the instructor asks students identify the tires was flat driver side, front passenger side rear of the driver or rear passenger side next. If students do not really have a tire and a tire of each randomly selected, what is the probability that the four students choose the same tire? A.1 / 8 B.1 / 4 C.1/64 D.1/256 9. Solve the problem. Decide if the events A and B are mutually exclusive or not mutually exclusive. A map is drawn from a deck of 52 cards. * The result is a 7. * The result is a cylinder. AB not mutually exclusive mutually exclusive mutually not 10. Solve the problem. A map is drawn from a deck of 52 cards. Find the probability that the letter is an ace or a card in black. A. 15/26 B. 29/52 C. 4 / 13 D. 7 / 13
8.) Let the students were interviewed one by one. The first student may appoint one of its tires will. This does not match anything. The second has a 1/4th chance to appoint the same tires as the first student. Likewise for students third and fourth. Thus the probability of naming all the same tires (1 / 4) (1 / 4) (1 / 4) = 1 / 64 9.) Through 7 and all cylinders are mutually exclusive if the two events are mutually exclusive. You can not draw a card from the deck and do a 7 and an actuator simultaneously. 10.) There are 26 black cards and two aces are not so dark. That is 28 of the 52 positive results. The probability of success is: 28/52 = 7 / 13.
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