document.write( "Question 814740: 20% of the students in Mr. MacGregor’s class earned As on their final projects. 5% of the students who received As on their final projects also received As on their final exams. Find the probability that a student chosen at random received an A on both the final exam and the final project.\r
\n" ); document.write( "\n" ); document.write( "A. 0.01
\n" ); document.write( "B. 0.05
\n" ); document.write( "C. 0.10
\n" ); document.write( "D. 0.50\r
\n" ); document.write( "\n" ); document.write( "Please help me to understand how to get the answer, the way I keep trying isn't getting any of these choices.
\n" ); document.write( "Thanks
\n" ); document.write( "

Algebra.Com's Answer #490481 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( " 20/100 0r 1/5 of the students received an A on the final project
\n" ); document.write( "5% of the students who received As on their final projects also received As on their final exams
\n" ); document.write( "\".05%2A%281%2F5%29=++.01\" (1/100 students did both) \n" ); document.write( "
\n" );