Determine the probability of the events.
1. You survey all customers at a grocery store about
their favorite fruit. Is this an example of a census
or a sample? Explain.
2. You survey people from a certain town in a
bookstore about their favorite book. Is this an
example of a census or a sample? Explain.
3. You survey some class members about what kind
of pets they have. The results are: dog, 15; cat,
12; fish, 3; hamster, 6; reptile, 4. Is this an
example of a census or a sample?
4. Using the data in #3, write a comparison of class
members that have a reptile, cat, and a hamster
to the pets in the whole class.
5. You survey all the people enrolled at the gym
and ask them about their favorite exercise class.
The results are spin class, 30; step class, 15; yoga
class, 25; Zumba class, 30. Is this an example of a
census or a sample?
6. Using the data in #5, what fraction of gym
members surveyed picked each class as their
favorite? (Simplify if possible.)