document.write( "Question 1103722: Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 r both married and college graduates. Find the probability that if a person is selected at random from this group, the person will be;
\n" ); document.write( "A. Married or not a college grad
\n" ); document.write( "B. Married and a college grad
\n" ); document.write( "C. Married and not a college grad \n" ); document.write( "

Algebra.Com's Answer #718422 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "Of 100 persons in a company, 70 r married, 80 r college graduates, and 60 are both married and college graduates.
\n" ); document.write( "Find the probability that if a person is selected at random from this group, the person will be: \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "a. Married or not a college graduate....  Their number = n(Married) + n(NOT_college_graduated) - n(Married_AND_college_graduated) = \r\n" );
document.write( "\r\n" );
document.write( "                                                       = 70 + (100-80) - 60 = 70 + 20 - 60 = 30.\r\n" );
document.write( "\r\n" );
document.write( "                                                                    So the probability is   =  = 0.3 = 30%.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "b. Married and a college graduate....     Their number is 60.          The probability is   =  = 0.6 = 60%.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "c. Married and not a college graduate.    Their number is 70-60 = 10.  The probability is   =  = 0.1 = 10%.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "I answered ALL YOUR QUESTIONS.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );