Question

For the following questions, would you collect information using a sample or a population?

1. To calculate the percentage of car owners in New York City.

   • Population

   • Sample

2. To know how many different private airlines provide service in the United States.

   • Population

   • Sample

3. To estimate weekly earnings of computer programmers in United States.

   • Sample

   • Population

4. To find the marks of a class of 20 students in a physics exam.

   • Sample

   • Population

Answer 1

(a) To calculate the percentage of car owners in New York City - Population

Here we have to consider whole New York City's car owners, so we can't take samples.

(b) To know how many different private airlines provide service in the United States- Population

Here we have to consider whole United States's private airlines , so we can't take samples.

(c) To estimate weekly earnings of computer programmers in United States- Population

Here we have to consider whole computer programmers in United States , so we can't take samples.

(d) To find the marks of a class of 20 students in a physics exam - Population

Here we have to consider whole class of a students , so we can't take samples.

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