Teaching CSIR NET Mock Test Series Engineering Mathematics Probability and Statistics Random Variables Basics
Let X is an continuous random variable with a probability density function:
\({f_x}\left( x \right) = \left\{ {\begin{array}{*{20}{c}} {\frac{1}{λ }{e^{ - \frac{1}{λ }x}},}&{x > 0}\\ {0,}&{else{\rm{ }}where} \end{array}} \right.\)
What will be the value of λ ( > 0) for such a Random variable?1
q
2
1
3
- r
4
e