The average birth weight of elephants is 220220 pounds. assume that the distribution of birth weights is normal with a standard deviation of 6060 pounds. find the birth weight of elephants at the 9595th percentile.

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natalie2sheffield

29.02.2020

Mathematics

$\bf \textit{area of a trapezoid}\\\\ A=\cfrac{h(a+b)}{2}~~ \begin{cases} a,b=\stackrel{bases}{parallel~sides}\\ h=height\\[-0.5em] \hrulefill\\ a=29\\ h=9\\ A=193.5 \end{cases}\implies 193.5=\cfrac{9(29+b)}{2} \\\\\\ 387=9(29+b)\implies \cfrac{387}{9}=29+b\implies 43=29+b\implies 14=b$

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