document.write( "Question 1040957: A bag contains 20 marbles, 3 are colored red, 6 are colored green, 4are colored blue, 2 are colored white and 5 are colored yellow. One ball is selected at random. Find the probabilities of the following events.
\n" ); document.write( "(a) the ball is either red or green
\n" ); document.write( "(b) the ball is not blue
\n" ); document.write( "(c) the ball is either red or white or blue.\r
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Algebra.Com's Answer #655925 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
a) \"P%28R%29=3%2F20\"
\n" ); document.write( "\"P%28G%29=6%2F20\"
\n" ); document.write( "\"P%28R_OR_G%29=3%2F20%2B6%2F20=9%2F20\"
\n" ); document.write( "b) \"P%28B%29=4%2F20=1%2F5\"
\n" ); document.write( "\"P%28NOT_B%29=1-P%28B%29\"
\n" ); document.write( "\"P%28NOT_B%29=1-1%2F5\"
\n" ); document.write( "\"P%28NOT_B%29=4%2F5\"
\n" ); document.write( "c) \"P%28W%29=2%2F20\"
\n" ); document.write( "\"P%28R_OR_W_OR_B%29=3%2F20%2B2%2F20%2B4%2F20\"
\n" ); document.write( "\"P%28R_OR_W_OR_B%29=9%2F20\"
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