SOLUTION: A pharmaceutical company states that the average number of people that have serious medical issues with their medicine is only 6 people per year. The medicine is sold to millions o

Question 1195321: A pharmaceutical company states that the average number of people that have serious medical issues with their medicine is only 6 people per year. The medicine is sold to millions of people.
a) What is the probability that 7 or more people will have serious medical issues with their medicine? Give answer to 3 decimal places.

b) What is the probability that fewer than 7 people will have serious medical issues with their medicine? Give answer to 3 decimal places.

c) What is the probability that 7 people will have serious medical issues with their medicine? Give answer to 3 decimal places.

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
This is a Poison distribution with parameter 6
The probability of greater than equal to 7 is 1-prob.6 or fewer 1-(poissonpdf(6,6)(=0.3937 or 0.394
The probability of fewer than 7 is the complement or 0.606.
The probability of 7 is e^(-6)*6^7/7!=0.1377 or 0.138

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