7. -12 points ASWSBE13 4.E.024 My Notes Clarkson University surveyed alumni to l

Question

7. -12 points ASWSBE13 4.E.024 My Notes Clarkson University surveyed alumni to learn more about what they think of Clarkson. One part of the survey asked respondents to indicate whether their overall experience at Clarkson fell short of expectations, met expectations, or surpassed expectations. The results showed that 3% of the respondents did not provide a response, 23% said that their experience fell short of expectations, and 66% of the respondents said that their experience met expectations. (a) If we chose an alumnus at random, what is the probability that the alumnus would say their experience surpassed expectations? (b) If we chose an alumnus at random, what is the probability that the alumnus would say their experience met or surpassed expectations? Need Help? Read It Talk to a Tuter

Explanation / Answer

P(No response) = 0.03
P(short of expectations) = 0.23
P(Met expectations) = 0.66

a)
P(surpassed expectations) = 1 - 0.03 - 0.23 - 0.66 = 0.08

b)
P(met or surpassed expectations) = 0.66 + 0.08 = 0.74

Here events are mutually exclusive, hence intersection is zero.

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