document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1171674>Question 1171674</A>: <I><SPAN STYLE=\"word-break: break-all;\"> ⦁	The two-way table below gives the thousands of commuters in Massachusetts in 2015 by transportation method and one-way length of commute.<BR>\n" );
document.write( " 	Less than 15 minutes	15  -  29 minutes	30  -  44 minutes	45  -  59 minutes	60 or more minutes	Total<BR>\n" );
document.write( "Private vehicle	636	908	590	257	256	2647<BR>\n" );
document.write( "Public transportation	9	54	96	62	108	329<BR>\n" );
document.write( "Other means	115	70	23	7	7	222<BR>\n" );
document.write( "Total	760	1032	709	326	371	3198<BR>\n" );
document.write( "⦁	Find the probability that either the commuter used public transportation and/or the commuter had a commute of 60 or more minutes.                                                 (2 marks)<BR>\n" );
document.write( "⦁	Given that the commuter used public transportation, find the probability that the commuter had a commute of 60 or more minutes.                                                 (2 marks)<BR>\n" );
document.write( " </SPAN>\n" );
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document.write( "Private vehicle	     636	908	590	257	256	2647<BR>\n" );
document.write( "Public transportation	9	54	96	62	108	329<BR>\n" );
document.write( "Other means.          	115	70	23	7	7	222<BR>\n" );
document.write( "Total                	760      1032  709	326	371	3198\r<BR>\n" );
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document.write( "Public transportation has 329 (end of the 2nd row)<BR>\n" );
document.write( "60 or more minutes is 371 (fourth column total)<BR>\n" );
document.write( "That is 600<BR>\n" );
document.write( "subtract where they intersect (double counting) which is 108.<BR>\n" );
document.write( "There were 492 of 3198 (15.4%)\r<BR>\n" );
document.write( "\n" );
document.write( "Given they used public transportation (329), number that they had commute of 60 or more min was 108. That probability is 32.8%. </SPAN>\n" );
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