Math, asked by ugrasenjorj25, 1 month ago

Q.19:For a Poisson Distribution, if mean(m) = 1, then P(1) is?
a) Olle
b) Oe
c) O e/2
d) Indeterminate​

Answers

Answered by MaheswariS
1

\underline{\textbf{Given:}}

\textsf{For a Poisson distribution, mean m=1}

\underline{\textbf{To find:}}

\textsf{P(1)}

\underline{\textbf{Solution:}}

\textsf{The probability mass function of Poisson distribution is}

\mathsf{P(X=x)=\dfrac{e^{-m}m^x}{x!}\;\;x=0,1,2,3,\;.\;.\;.}

\implies\mathsf{P(X=x)=\dfrac{e^{-1}1^x}{x!}\;\;x=0,1,2,3,\;.\;.\;.}

\mathsf{Now,}

\mathsf{P(1)}

\mathsf{=P(X=1)}

\mathsf{=\dfrac{e^{-1}1^1}{1!}}

\mathsf{=e^{-1}}

\mathsf{=\dfrac{1}{e}}

\implies\boxed{\boxed{\mathsf{P(1)=\dfrac{1}{e}}}}

Similar questions