Probability Mass Function of Poisson Distribution with parameter = 4 is give by:
,
x = 0, 1, 2, ...
P(X3) = 1 - [p(X=0) + P(X=1) + P(X=2)]
So,
P(X3) = 1 - (0.0183 + 0.0733 + 0.1465) = 1 - 0.2381 = 0.7619
So,
Answer is:
0.7619
4) The number of hurricanes which hit the USA each year is Poisson with parameter 4....
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