document.write( "Question 1194278: A marble is randomly selected from a bag of solid-colored marbles. The probability of selecting a blue marble is 7/20. The probability of selecting a green marble is 9/20. What is the probability of selecting a blue or green marble? \n" ); document.write( "

Algebra.Com's Answer #826424 by ikleyn(52790) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "A marble is randomly selected from a bag of solid-colored marbles.
\n" ); document.write( "The probability of selecting a blue marble is 7/20.
\n" ); document.write( "The probability of selecting a green marble is 9/20.
\n" ); document.write( "What is the probability of selecting a blue or green marble?
\n" ); document.write( "~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "    P(selecting a blue or green marble) = P(selecting a blue marble) + P(selecting a green marble) =\r\n" );
document.write( "\r\n" );
document.write( "                                        =  +  =  =  =  = 0.8 = 80%.\r\n" );
document.write( "\r\n" );
document.write( "These events, selecting a blue marble and selecting a blue marble are disjoint, or mutually exclusive events,\r\n" );
document.write( "so the probability to have one of the two events is the sum of particular probabilities.\r\n" );
document.write( "

\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );