document.write( "Question 1162349: A survey of 1000 people were asked whether they wear eyeglasses while driving.
\n" );
document.write( "These people were also tested to see whether they need to wear eyeglasses
\n" );
document.write( "while driving.
\n" );
document.write( "440 wear glasses and need to wear them
\n" );
document.write( "20 wear glasses and do not need to wear them
\n" );
document.write( "140 don't wear glasses but need to wear them
\n" );
document.write( "400 don't wear glasses and don't need to wear them
\n" );
document.write( "What is the probability that they wear glasses while driving even though they
\n" );
document.write( "do not need to wear them? \n" );
document.write( "
Algebra.Com's Answer #786189 by ikleyn(52800)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The question in this post\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " What is the probability that they wear glasses while driving even though they do not need to wear them?\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "is posed INCORRECTLY, since it does not define who are that \"they\".\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "A RIGHT question should be\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( " If a person is selected randomly from these 1000 people, \r\n" ); document.write( "\r\n" ); document.write( " then what is the probability that he (or she) wears glasses while driving even though he (or she) does not need to wear them?\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( "Then the answer, as it is OBVIOUS, is \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Your post is fixed; the problem is solved; the question is answered and the solution is completed.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |