Question 643927: 1. a committee of 5 is to be selected from 10 seniors and 15 juniors. what is the probability that the committee is to consist of at most juniors?
2. a number of 2 different digits is to be formed from the digits 1, 2 ,3, 4, and 5. determine the probability of each of the following events:
a. the no. is odd
b. no is greater than 25
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 1. a committee of 5 is to be selected from 10 seniors and 15 juniors. what is the probability that the committee is to consist of at most juniors?
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# of ways to succeed: 15C5
# of random outcomes: 25C5
Ans: (15C5)/(25C5) = 0.3176
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2. a number of 2 different digits is to be formed from the digits 1, 2 ,3, 4, and 5. determine the probability of each of the following events:
a. the no. is odd
# of ways to succeed: 5*3 = 15
# of random outcomes: 5*5 = 25
Ans: 15/25 = 3/5
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b. no is greater than 25
# of ways to succeed: 2*5 = 10
# of random outcomes: 5*5 = 25
Ans: 10/25 = 2/5
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Cheers,
Stan H.
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