Mathematics, 26.11.2019 18:31 enca2619
The expected number of typographical errors on a page of a certain magazine is .2. what is the probability that an article of 10 pages contains (a) 0 and (b) 2 or more typographical errors? explain your reasoning!
Answers: 1
in formula,
![P(N\geq 2)=1-[P(N=0)+P(N=1)]](/tpl/images/0391/7504/15739.png)
![P(N\geq 2)=1-[\frac{e^{-0.2}(0.2)^0}{0!}+\frac{e^{-0.2}(0.2)^1}{1!}]](/tpl/images/0391/7504/4d63b.png)
![P(N\geq 2)=1-[e^{-0.2}+e^{-0.2}(0.2)]](/tpl/images/0391/7504/b62cb.png)
![P(N\geq 2)=1-[0.8187+0.1637]](/tpl/images/0391/7504/647ed.png)
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