Concept explainers
In Exercises 60-61, construct a Venn diagram and determine the cardinality foe each region. Use the completed Venn diagram to answer the questions.
A survey of 200 students at a nonresidential college was taken to determine how they got to campus during the fall term. Of those surveyed, 118 used cars, 102 used public transportation, and 70 used bikes. Forty-eight students used cars and public transportation, 38 used cars and bikes. Twenty-two students used all three modes of transportation. Of those surveyed,
a. How many used only public transportation?
b. How many used cars and public transportation, but not bikes?
c. How many used cars or public transportation, but not bikes?
d. How many used exactly two of these modes of bikes?
e. How many did not use any of the three modes of transportation to get to campus?
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