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Old 07-17-2007   #1
limebacardi
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Default Probabilities!!! HELP MEEEE!!!?

How many license plates with three numbers followed by three letters can be created if the letter 'O' and number '0' cannot be used? How many ways could 8 people be lined up? A 20-sided die (numbered 1 through 20) is tossed twice. What is the probability that both rolls will land on a prime number?
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Old 07-17-2007   #2
Romeo
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plates ?people ?dice ?Who cares? I haven't slept in two days and didn't get on here to think, just to relax.
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Old 07-17-2007   #3
SMILEYMILEY5
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ask a math teacher
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Old 07-17-2007   #4
ksoileau
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license plates: 9^3*25^3line of people: 8!prime die: (8*8)/(20*20)
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Old 07-17-2007   #5
buoisang
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license plate, letN1 = first numberN2 = 2nd numberN3 = 3rd numberL1 = 1st letterL2 = 2nd letterL3 = 3rd letterthenlicense plate = N1 N2 N3 L1 L2 L3There are 9 choices for N1 (1,2, ...,9)There are 9 choices for N2 (1,2, ...,9)There are 9 choices for N3 (1,2, ...,9)There are 25 choices for L1 (A-N, P-Z)There are 25 choices for L2 (A-N, P-Z)There are 25 choices for L3 (A-N, P-Z)number of possible license plates =9 * 9 * 9 * 25 *25 * 25 =11390625line-up problemLineUp = P1 P2 P3 P4 P5 P6 P7 P8there are 8 choices for person 17 choices for person26 choices for person 3, etc.......1 choices for person 8# of ways to line up 8 persons is8 * 7 * 6 * 5 * 4 * 3 * 2 * 1 = 40320 ways
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