document.write( "Question 1120439: In each of the following, E and F are independent. Find
\n" ); document.write( "P(E ∪ F).
\n" ); document.write( "a) P(E) = 0.3, P(F) = 0.5
\n" ); document.write( "
\n" ); document.write( "b) P(E) = 0.2, P(F) = 0.3\r
\n" ); document.write( "\n" ); document.write( "c) P(E) = 0.3, P(F) = 0.7\r
\n" ); document.write( "\n" ); document.write( "Sorry I don't understand this, like at all
\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #737205 by Boreal(15235)\"\" \"About 
You can put this solution on YOUR website!
Independence means P( E and F)=P(E)*P(F)
\n" ); document.write( "P(E U F) means P(E)+P(F)-PiBoth), which is the overlap, which is P(E and F)
\n" ); document.write( "So A is the sum (0.8)-the product(0.15), leaving 0.65, the union.
\n" ); document.write( "B is 0.5-0.04 or 0.44
\n" ); document.write( "C is 1.0-0.21 or 0.79
\n" ); document.write( "
\n" );