SOLUTION: Five cards are numbered 0 through 4. Two are selected without replacement. What is the probability that the sum of the cards is 3?

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Question 847380: Five cards are numbered 0 through 4. Two are selected without replacement. What is the probability that the sum of the cards is 3?
Found 2 solutions by swincher4391, ewatrrr:
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
There are 5*4 = 20 possible draws
There is (0+3), (1+2), (2+1), (3+0) 4 draws that sum to 3.
So 4/20 or 1/5 in simplest form.


Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

without replacement

5C2 = 10, 2 ways for the sum to be 3:     0 and 3  0r   1 and 2

P(sum is three) = 2/10 =1/5 = .2  or 20%