3 years ago

Please answer these questions... please

Mathematics

1 answer:

kirill [66]3 years ago

7 0

The last one is $225

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dedylja [7]

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3 years ago

The waiting time, in hours, between successive speeders spotted by a radar unit is a continuous random variable with cumulative

snow_lady [41]

Given the CDF

$F_X(x)=\begin{cases}0&\text{for }x$

we have PDF

$\dfrac{\mathrm dF_X(x)}{\mathrm dx}=f_X(x)=\begin{cases}0&\text{for }x$

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$12\text{ min}\times\dfrac{1\text{ hr}}{60\text{ min}}=\dfrac15\text{ hr}$

so we're looking for $\mathbb P\left(X$ .

The CDF gives us this value right away, since $F_X(x)=\mathbb P(X$ for any continuous random variable $X$ with distribution function $F_X(x)$ :

$\mathbb P\left(X$

To use the PDF, we need to integrate:

$\mathbb P\left(X$

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