Probability Homework Help???

Theres more questions about 40 but I did most of them fast and easy, so please don't think that I just want answers I don't understand some of it.Hi I have some (a lot) of math problems can someone help. Thank You





1) 5 sandwiches, 3 salads, and 3 beverages. How many different meals can you chose having one of each?


a.1 b. 11 c. 45 d. 5





2) A fair coin is tossed three times, what is the probability of getting three tails?





3) A traffic light is red 32 seconds, green 25 seconds, and yellow 3 seconds. Probability that the light will be red at any given time?





4) Half an hour of T.V , eight mins for commercials. T.v is turned at random probability that a commercial is not being shown?


a. 8/30 b. 0 c. 1 d. 22/30





5) Two cubes numbered 1 through 6. Probability that both cubes will show that same number?





6) How many different ways can six plants be arranged side by side on a shelf?


a. 5040 b.720 c. 6 d. 36





7) 12 red bulbs, 8 blue bulbs, and 10 yellow bulbs. Probability that a yellow bulb will burn out first?


a. 1/30 b. 0/30 c. 10/30 d. 1/3 e. 20/30





8) A number is chosen at random from (1,2,3,4,5,6). Greatest probability of occurring?


a. choosing a prime number b. choosing a number greater than 3 c. not choosing either 1 or 6 d. choosing a even number





9) The probability that it will rain is 0.8. Probability that it will not rain?





10) A letter is chosen at random from the work


" S E Q U E N T I AL", probability of the letter chosen is E.





11) Probability that a digit chosen at random from (1,2,3,4,5,6,7,8) will be a number divisible by 3.





12) What is the greatest number of two- letter arrangements that can b formed from letter G,RA,D and E it each letter is used only once?





13) School building has 8 entry doors on the first floor and 3 stairways to the second floor. How many different ways can a person enter the building and go to the second floor?

Probability Homework Help???
1) 45 (5x3x3)


2) 1/6 (1/2 x 1/2 x 1/2)


3) p(red) = 32/60 or 8/15


4) 22/30


5) 1/6


6) 720 (6x5x4x3x2x1)


7) 10/30


8) c - not choosing either 1 or 6 (4/6), the others are all 3/6


9) 0.2 (the sum of all probabilities equals 1)


10) 0.2 (2/10)


11) 1/4 (2/8)


12) 20 (5x4)


13) 24 (8x3)
Reply:the way I got #5 was: the probability of getting a number 1 through 6 on the first cube (6/6) x the probability of getting the same number on the second cube (1/6) = 6/36 = 1/6 Report It

Reply:1)c


2)1/8


3)8/15


4)d


5)1/6


6)b


7)c


8)c


9)20%


10)1/5


11)1/4


12)20


13)24
Reply:didnt have much time but 1 is C, 4 is D, 6 is D,7 is D, and 10 i think is 2/8.


i hope this helps if not srry