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AssignmentMultiple Choice

Inferences and Predictions

Question 1 • Pre-Algebra B

The manager of a movie theater wants to know what types of movies his customers prefer to watch. Which sample would most likely provide the most accurate data?

Answer
A
the first 30 people leaving the theater after an action film
B
a random group of 30 people people at a mall
C
a random group of 5 people on the street
D
ten friends at a birthday party

Explanation

A random sample is less likely to be biased than a group selected because of where they are or what they are doing. The people leaving an action film may favor action movies, and friends at a party may have similar tastes. A random group of 30 people at a mall is larger than the street sample and is not tied to a particular movie, so it is most likely to represent a variety of preferences.

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