1. BloodTypes:Part A The most useful blood type for transfusions is bloodtype O- or "O-negative",because people with this blood type are considered "universal donors" as this blood won't be rejected by the recipient. Only 7.0% of the population of Canada have ablood type of O-negative, in other words only 7 out of 100people have this blood type in Canada.If you walked down the street and spoke with people completely at random,what is the expected number of people you would need to talk to until you found someone with this bloodtype? What is the standard deviation for the number of people you would need to talk to until you found someone with this bloodtype? Show your calculations below andmake sure to clearly indicate both the expected number of people as well as the standard deviation,each rounded to 2 decimal places.
2. Given that7.0%of the population of Canada have bloodtype O-negative,calculate theprobabilitythat you wouldask exactly9people at random about their bloodype before person number9would have this bloodtype. answer as percentage rounded off to2decimal places.