Probability/The Addition Rule Question 05 The probability that event A or event B will occur is

«math style=¨font-family:`Times New Roman`¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»or«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«mo»=«/mo»«mi»P«/mi»«mfenced»«mi»A«/mi»«/mfenced»«mo»+«/mo»«mi»P«/mi»«mo»(«/mo»«mi»B«/mi»«mo»)«/mo»«mo»-«/mo»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»or«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«/math»

]]> False. The probability that event A or event B will occur is

«math style=¨font-family:`Times New Roman`¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»or«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«mo»=«/mo»«mi»P«/mi»«mfenced»«mi»A«/mi»«/mfenced»«mo»+«/mo»«mi»P«/mi»«mo»(«/mo»«mi»B«/mi»«mo»)«/mo»«mo»-«/mo»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»and«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«/math»

]]> 1.0000000 1.0000000 0 True False False. The probability that event A or event B will occur is

«math style=¨font-family:`Times New Roman`¨ xmlns=¨http://www.w3.org/1998/Math/MathML¨»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»or«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«mo»=«/mo»«mi»P«/mi»«mfenced»«mi»A«/mi»«/mfenced»«mo»+«/mo»«mi»P«/mi»«mo»(«/mo»«mi»B«/mi»«mo»)«/mo»«mo»-«/mo»«mi»P«/mi»«mfenced»«mrow»«mi»A«/mi»«mo»§#160;«/mo»«mtext»and«/mtext»«mo»§#160;«/mo»«mi»B«/mi»«/mrow»«/mfenced»«/math»

]]> ]]>