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ABy Admin
Jun 01'22
Exercise
The random variable [math]X[/math] has a distribution with the following density function:
[[math]]
f_X(x) = \begin{cases} \theta^{-1} e^{-x/\theta} \,\, x\geq 0 \\
0 \,\, \textrm{otherwise} \end{cases}
[[/math]]
where [math]\theta [/math] is unknown. If the median of the distribution equals 250, determine the standard deviation of [math]X[/math].
- 19
- 250
- 300
- 360.67
- 365.67