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updated typo fix

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aaronshaw
2019-04-16 18:51:08 -05:00
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problem_sets/week_03/ps3-worked_solution.html
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@@ -641,7 +641,7 @@ l68/length(d)</code></pre>
<ol start="4" style="list-style-type: lower-alpha">
<li>Is random assignment to tents likely to ensure <span class="math inline">\(\leq1~arachnophobe\)</span> per tent?</li>
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<p>Random assignment and the independence assumption means that the answer to part c is the inverse of the outcome we’re looking to avoid: <span class="math inline">\(P(\gt1~arachnophobes) = 1-P(\leq1~arachnophobe)\)</span>. So, <span class="math inline">\(P(\gt1~arachnophobes) = 1-0.84 = 0.16 = 16\%\)</span>. Those are the probabilities, but the interpretation really depends on how confident the camp counselor feels about a <span class="math inline">\(16\%\)</span> chance of having multiple arachnophobic campers in one of the tents.</p>
<p>Random assignment and the independence assumption means that the answer to part c is the complement of the outcome we’re looking to avoid: <span class="math inline">\(P(\gt1~arachnophobes) = 1-P(\leq1~arachnophobe)\)</span>. So, <span class="math inline">\(P(\gt1~arachnophobes) = 1-0.84 = 0.16 = 16\%\)</span>. Those are the probabilities, but the interpretation really depends on how confident the camp counselor feels about a <span class="math inline">\(16\%\)</span> chance of having multiple arachnophobic campers in one of the tents.</p>
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