Question

A vendor is keeping track of his customers and their methods of payment. For each customer,...

  1. A vendor is keeping track of his customers and their methods of payment. For each customer, he records whether they paid by cash, credit card, or some other method.

    1. What is the population?

    2. What is an individual?

    3. What is the variable?

    4. Is the variable quantitative or qualitative? Why?

    5. Is this an observational study or an experiment? Why?

Math   Statistics-And-Probability   
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Answer #1

  1. What is the population?

Ans: All the customers togather are population.

2. What is an individual?

Ans: The individuals are units of population.

3.What is the variable?

Ans: A variable is a number or characteristics that can be measured. In this case Method of Payment is a variable. Method of payment for a customer will have values like Cash/ credit card/other.

4. Is the variable quantitative or qualitative? Why?

Ans: The variable is qualitative. Since cash or credit card or others are not numbers. Hence it is qualitative.

5. Is this an observational study or an experiment? Why?

Ans: It is an observational study. Since we are measuring the customers without trying to affecting them. In experimental study we apply treatments after grouping them.

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