Random Variables
Interactive practice questions
Consider the probability density function drawn below.
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a
State the function $p\left(x\right)$p(x).
$p\left(x\right)=$p(x)=  |
$\editable{}$ when $\editable{}\le x\le\editable{}$≤x≤ |
| $\editable{}$ otherwise |
b
Use integration to determine the expected value of a random variable $X$X if it is distributed according to $p\left(x\right)$p(x).
Easy
4min
Consider the probability density function drawn below.
Easy
3min
Consider the probability density function drawn below.
Easy
4min
Consider the probability density function $p\left(x\right)=\frac{1}{40}$p(x)=140 when $10\le x\le50$10≤x≤50.
Easy
1min
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