Which expression is equivalent to i^256?-1i1-i
2 answers:
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Answer:
Step-by-step explanation:
Since the company wants to survey 500 customers by the countries visited, the number of samples from each country will be proportional to the number of customers.
For UK, Number of Samples
For France, Number of Samples
For Spain, Number of Samples
For Italy, Number of Samples
The completed table therefore is:
I suppose the density is supposed to be
(since diverges as
, and 0 is conveniently left out of the domain)
For this to be a proper density function, it must be positive (it is) and its integral over the support must evaluate to 1. We have
which means .
The distribution function is obtained by integrating the density:
The probability that the component exceeds 2 years in its lifetime is