Management at a home improvement store randomly selected 95 customers and observed their shopping habits. They recorded the number of items each of the customers purchased as well as the total time the customers spent in the store. Identify the types of variables recorded by the managers of the home improvement store.

a. number of items-discrete: total time-discrete

b. number of items-continuous; total time-discrete

c. number of items-continuous; total time-continuous

d. number of items-discrete; total time-continuous

Question

Mathematics

Coby

30 November, 02:05

Management at a home improvement store randomly selected 95 customers and observed their shopping habits. They recorded the number of items each of the customers purchased as well as the total time the customers spent in the store. Identify the types of variables recorded by the managers of the home improvement store.

a. number of items-discrete: total time-discrete

b. number of items-continuous; total time-discrete

c. number of items-continuous; total time-continuous

d. number of items-discrete; total time-continuous

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Answers (1)

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Alvin · Answer 1

d. number of items-discrete; total time-continuous

Step-by-step explanation:

Continuous:

Real numbers, can be integer, decimal, etc.

Discrete:

Only integer (countable values). So can be 0,1,2 ...

In this question:

You can purchase 0, 1, 2, ...,10, ...,100, ... items, so the number of items is discrete.

You can spend for example, 0.5 hours in the store, or 2.5 minutes, that is, can be decimal numbers. So the total time is continuous

The correct answer is:

d. number of items-discrete; total time-continuous