SOLUTION: I have 18 letters in envelopes and stamps for 10. If one letter is selected @ random find the probability that it will be a
A) Stamped letter
B) Not a stamped letter
[In try
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Probability-and-statistics
-> SOLUTION: I have 18 letters in envelopes and stamps for 10. If one letter is selected @ random find the probability that it will be a
A) Stamped letter
B) Not a stamped letter
[In try
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Question 609977: I have 18 letters in envelopes and stamps for 10. If one letter is selected @ random find the probability that it will be a
A) Stamped letter
B) Not a stamped letter
[In trying to solve this, there are 18 total, 10 w/stamps, therefore 8 w/o stamps. I'm not able to come up with the answers (a. 5/9 and b. 4/9) working with 10 and 8. Your direction is always appreciated. I'm sure it is simple]. Answer by jim_thompson5910(35256) (Show Source):
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