ACTEX Module 3 Errata?

[PistolPt01]

For those with ACTEX....I didn't see this in the errata for Spring...

In Module 3, pg. 23, talking about example 3.40 in the middle of the page...

ii) The only way to have exactly one claim is to have exactly one envelope with exactly one claim:
P(S=1) = P(N=1)P(X=1 given N=1)

they get....

P(S=1) = (e^(-650)) (0.20)

shouldn't it be...

P(S=1) = (e^(-650))(650) (0.20)
???

for all others...info...
P(X=1) = 0.20
N is poisson w/ lambda = 650

[Sandi Lynn Scherer]

You are correct. We thank you very much and will post this with the errata for this publication on the ACTEX web site.