# SOLUTION: A computer prints out three digits chosen at random from 0 to 9, inclusive. Find the probability that: a) All three digits are different. b) The third digit differs from the firs

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: A computer prints out three digits chosen at random from 0 to 9, inclusive. Find the probability that: a) All three digits are different. b) The third digit differs from the firs      Log On

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 Question 369923: A computer prints out three digits chosen at random from 0 to 9, inclusive. Find the probability that: a) All three digits are different. b) The third digit differs from the first two digits. Thank yoy very much for your answer!Answer by edjones(7569)   (Show Source): You can put this solution on YOUR website!a) 10/10 * 9/10 * 8/10 = 720/1000 = 18/25 . b) ((8/10 * 9) + 9/10)/10 Because of a 1/10 chance both of the first 2 digits are the same. = (72/10 + 9/10)/10 = 81/100 . Ed