Mathematics: Arandom variable x is best described by a continuous uniform distribution from 20 to 45 inclusive. the mean of this distribution is

Arandom variable x is best described by a continuous

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miraclejones543

04.01.2022

$f_X(x)=\begin{cases}\dfrac1{45-20}=\dfrac1{25}&\text{for }20\le x\le45\\0&\text{otherwise}\end{cases}$

The mean is given by

$\displaystyle\mathbb E(X)=\int_{-\infty}^\infty x f_X(x)\,\mathrm dx=\int_{20}^{45}\dfrac x{25}\,\mathrm dx=\dfrac{65}2$

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Ответ:

egirl31

31.12.2022

Mathematics

yfydehwuchchsjwnwixicjd

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Arandom variable x is best described by a continuous uniform distribution from 20 to 45 inclusive. the mean of this distribution is

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