The answer is A, because Men represent 55% of survey respondents, but they represent 475/850 = 56% of those with higher incomes. The answer options include an explanation which says that the conditional probability is not equal to the population probability.
Answer:
C.
Step-by-step explanation:
Hope this helps! :)
Step-by-step explanation:
since Poisson distribution parameter is not given so we have to estimate it from the sample data. The average number of of arrivals per minute at an ATM is
So probabaility for is
So expected frequency for is (or .
Answer:
4+2=6
Step-by-step explanation:
zx is just z * x 2*2 = 4
4+2=6