Answer & explanation
Correct answer: option 1
$\alpha = \frac{\beta}{1+\beta} = 0.995$
$ \beta = 0.995 + 0.995 \beta , \Rightarrow 0.005 \beta = 0.995$
$ \beta = \frac{0.995}{0.005} = 199$
Correct answer: option 1
$\alpha = \frac{\beta}{1+\beta} = 0.995$
$ \beta = 0.995 + 0.995 \beta , \Rightarrow 0.005 \beta = 0.995$
$ \beta = \frac{0.995}{0.005} = 199$