Question
Let fx(z) be the probability density function of the random variable X f(c) = 0 < = < 7; {8/7) otherwise Compute P(X < 1.9) t cf Answer:
Let fx(z) be the probability density function of the random variable X f(c) = 0 < = < 7; {8/7) otherwise Compute P(X < 1.9) t cf Answer:
Answers
$$\begin{array}{l}{\text { In Exercises } 73 \text { and } 74,(\text { a) show that the nonnegative function }} \\ {\text { is a probability density function, and (b) find } P(0 \leq x \leq 6)}\end{array}$$
$$f(t)=\left\{\begin{array}{ll}{\frac{1}{9} e^{-t / 9},} & {t \geq 0} \\ {0,} & {t<0}\end{array}\right.$$
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