Answer:
(i). 0.03981
(ii).0.0048
Step-by-step explanation:
The probability density function of Poisson distribution is:
Consider <em>X</em> is a number of typos error on a single page of a book and <em>X</em> follows the Poisson distribution with 
(i) Exactly two typos:

(ii) Two or more typos:
![\begin{aligned}P(X\geq2,\frac{1}{3})&=1-[P(X=0)+P(X=1)+P(X+2)]\\&=1-[0.7165+0.2388+0.03981]\\&=1-0.9952\\&=0.0048\end{aligned}](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7DP%28X%5Cgeq2%2C%5Cfrac%7B1%7D%7B3%7D%29%26%3D1-%5BP%28X%3D0%29%2BP%28X%3D1%29%2BP%28X%2B2%29%5D%5C%5C%26%3D1-%5B0.7165%2B0.2388%2B0.03981%5D%5C%5C%26%3D1-0.9952%5C%5C%26%3D0.0048%5Cend%7Baligned%7D)
The answer would be neither
The equations both don't have slope so parallel is out, and in order to be perpendicular, they must cross at the 90 degree angel which they are not . So the answer would be neither