3 years ago

The surface area of the figure is?

Mathematics

1 answer:

MissTica3 years ago

6 0

The answer would be C

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Step-by-step explanation:

Given:

The lifetimes of the individual items are independent exponential random variables.

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Therefore,

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$\therefore \mathrm{E}[\mathrm{T}]=\sum_{\mathrm{H}}^{5} \frac{200}{101-i}$

$b)$

The variance is given by, $\mathrm{Var}[\mathrm{T}]=\sum_{i=1}^{5} \mathrm{Var}[T]$

$\therefore \mathrm{Var}[\mathrm{T}]=\sum_{k=1}^{5} \frac{(200)^{2}}{(101-i)^{2}}$

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