document.write( "Question 1201381: Age S B A Totals
\n" ); document.write( "Y 8 2 18 28
\n" ); document.write( "M 16 8 12 36
\n" ); document.write( "O 34 17 12 63
\n" ); document.write( "Totals 58 27 42 127\r
\n" ); document.write( "\n" ); document.write( "Using contingency table:
\n" ); document.write( "Find O' union (S union A) \n" ); document.write( "
Algebra.Com's Answer #835735 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
.
\n" ); document.write( "
\r\n" );
document.write( "Age	S	B	A	Totals\r\n" );
document.write( "Y	8	2	18	28\r\n" );
document.write( "M	16	8	12	36\r\n" );
document.write( "O	34	17	12	63\r\n" );
document.write( "Totals	58	27	42	127\r\n" );
document.write( "\r\n" );
document.write( "Using contingency table:\r\n" );
document.write( "Find O' union (S union A)\r\n" );
document.write( "
~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\r\n" );
document.write( "In your post, the table is prepared very accurately - so accurately, \r\n" );
document.write( "that it is a pleasure to work with it and to help you.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "        Now listen to me attentively.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "They want you determine the number of elements in the set { O' union (S union A) }.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Here O' means the complement to the line O.  This complement is the union of lines Y and M.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "So, to the lines Y and M, you should add the parts of columns S and A, that are outside lines Y and M.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Lines Y and M give you the totals 28 + 36 = 64.\r\n" );
document.write( "\r\n" );
document.write( "To it, you should add the parts of columns S and A, that are outside the lines Y and M;\r\n" );
document.write( "in other words, you should add (34+12) to 64.  It will give you the ANSWER  64 + (34+12) = 110.\r\n" );
document.write( "
\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );