Question 1057499
The probability is given by:


{{{P(x, lambda) =( e^(-lambda) * lambda^x) /x! }}}


With {{{lambda}}} = 1.5 and x = 1:


{{{P(1, 1.5) =( e^(-1.5) * 1.5^1) /1! }}} = <strong>0.3370</strong>