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Mathematics, 22.08.2019 04:20 jmitial

For the following questions, would you collect information using a sample or a population?
a. to calculate the percentage of car owners in new york city.
b. to know how many different private airlines provide service in the united states.
c. to estimate weekly earnings of computer programmers in united states.
d. to find the marks of a class of 20 students in a physics exam.

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