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

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(8007) (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

RELATED QUESTIONS
A number is chosen at random from 1 to 600 inclusive. What is the probability that it... (answered by math_tutor2020)

A three digit number is chosen at random. What is the probability that either all the... (answered by edjones)

what is the probability of winning a lottery game where the winning number is made up of... (answered by stanbon)

What is the probability of winning a lottery game where the winning number is made up of... (answered by jim_thompson5910)

Two integers (from 1 to 30, inclusive) are chosen by a random number generator on a... (answered by stanbon)

How many digits does a printer print if it prints whole numbers from 1 to 728, inclusive? (answered by Theo)

If three numbers from 100 to 999 are chosen at random, one at a time, find the... (answered by ikleyn)

If three numbers from 100 to 999 are chosen at random, one at a time, find the... (answered by Edwin McCravy)

A computer assigns three-character log-in IDs that may contain the digits 0 to 9 as well... (answered by sudhanshu_kmr)