Question
In: Statistics and Probability
In analyzing hits by bombs in a past war, a city was subdivided into 487 regions,...
In analyzing hits by bombs in a past war, a city was subdivided
into 487 regions, each with an area of 1-mi². A total of 389 bombs
hit the combined area of 487 regions. The Poisson distribution
applies because we are dealing with the occurrences of an event
(bomb hits) over some interval (a region with area of 1-mi².
Find the mean number of hits per region:
mean =
Find the standard deviation of hits per region:
standard deviation =
If a region is randomly selected, find the probability that it was
hit exactly twice.
(Report answer accurate to 4 decimal places.)
P(X=2)=P(X=2)=
Based on the probability found above, how many of the 487 regions
are expected to be hit exactly twice?
(Round answer to a whole number.)
ans =
If a region is randomly selected, find the probability that it was
hit at most twice.
(Report answer accurate to 4 decimal places.)
P(X≤2)=P(X≤2)=
Solutions
Expert Solution
POISSION DISTRIBUTON: IT IS A DESCRETE FREQUENCY DISTRIBUTION WHICH GIVES THE PROBABILITY OF A NUMBER OF INDEPENDENT EVENTS IN A FIXED TIME.
orchestra answered 1 year agoRelated Solutions
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