Question

A die is thrown twice. What is the probability that the sum of the number of dots shown is even?
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Answer 1

Answer:

$\documentclass{article}</p><p>\usepackage{tikz}</p><p>%</p><p>\usetikzlibrary{trees}</p><p>\begin{document}</p><p>\begin{tikzpicture}[</p><p> man/.style={rectangle,draw,fill=blue!20},</p><p> woman/.style={rectangle,draw,fill=red!20,rounded corners=.8ex},</p><p> grandchild/.style={grow=down,xshift=1em,anchor=west,</p><p> edge from parent path={(\tikzparentnode.south) |- (\tikzchildnode.west)}},</p><p> first/.style={level distance=6ex},</p><p> second/.style={level distance=12ex},</p><p> third/.style={level distance=18ex},</p><p> level 1/.style={sibling distance=5em}]</p><p> % Parents</p><p> \coordinate</p><p> child[grow=left] {node[man,anchor=east]{Jim}}</p><p> child[grow=right] {node[woman,anchor=west]{Jane}}</p><p> child[grow=down,level distance=0ex]</p><p> [edge from parent fork down]</p><p> % Children and grandchildren</p><p> child{node[man] {Alfred}</p><p> child[grandchild,first] {node[man]{Joe}}</p><p> child[grandchild,second] {node[woman]{Heather}}</p><p> child[grandchild,third] {node[woman] {Barbara}}}</p><p> child{node[woman] {Berta}</p><p> child[grandchild,first] {node[man]{Howard}}}</p><p> child {node[man] {Charles}}</p><p> child {node[woman]{Doris}</p><p> child[grandchild,first] {node[man]{Nick}}</p><p> child[grandchild,second] {node[woman]{Liz}}};</p><p>\end{tikzpicture}</p><p>\end{document}$

Answer 2

Answer:

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