document.write( "Question 524116: Let X denote the random variable that gives the sum of the faces that fall uppermost when two fair dice are rolled. Find P(X = 4). (Round your answer to two decimal places.)
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Algebra.Com's Answer #347621 by solver91311(24713) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "The probability of an event is the number of ways that the event can occur successfully divided by the total number of ways that it can occur at all.\r
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Sum	Ways	# of Ways
2	1,1	1
3	1,2; 2,1	2
4	1,3; 2,2; 3,1	3
5	1,4; 2,3; 3,2; 4,1	4
6	1,5; 2,4; 3,3; 4,2; 5,1	5
7	1,6; 2,5; 3,4; 4,3; 5,2; 6,1	6
8	2,6; 3,5; 4,4; 5,3; 6,2	5
9	3,6; 4,5; 5,4; 6,3	4
10	4,6; 5,5; 6,4	3
11	5,6; 6,5	2
12	6,6	1

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\n" ); document.write( "My calculator said it, I believe it, that settles it
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$\"The$

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