document.write( "Question 1036314: An investor invests in stocks without being informed of all the intricacies of stock market. The probability that his 1st investment in one market sector is a good stock is 1/3 and that his second investment in an unrelated market sector is a good stock is 1/4.
\n" );
document.write( "Find THE probability that: \r
\n" );
document.write( "\n" );
document.write( "A)At least one investment would be a good stock
\n" );
document.write( "B)Both the investments would be good stocks
\n" );
document.write( "C) Only one investment would be a good stock
\n" );
document.write( "D)None of the investments would be a good stock. \r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "Thanks in advance! \n" );
document.write( "
Algebra.Com's Answer #650975 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! n investor invests in stocks without being informed of all the intricacies of stock market. The probability that his 1st investment in one market sector is a good stock is 1/3 and that his second investment in an unrelated market sector is a good stock is 1/4. \n" ); document.write( "Find THE probability that: \n" ); document.write( "A)At least one investment would be a good stock \n" ); document.write( "P(at least one good) = 1 - P(both bad) = 1-(2/3)(3/4) = 1/2 \n" ); document.write( "========================================= \n" ); document.write( "B)Both the investments would be good stocks \n" ); document.write( "P(both good) = 1/3 *1/4 = 1/12 \n" ); document.write( "------------------------------------------- \n" ); document.write( "C) Only one investment would be a good stock \n" ); document.write( "P(one good) = 1 - [(1/12)+(1/2)] = 1-7/12 = 5/12 \n" ); document.write( "------------------------------ \n" ); document.write( "D)None of the investments would be a good stock. \n" ); document.write( "P(none good) = (2/3)(3/4) = 1/2 \n" ); document.write( "-------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |