When Processing Credit Card Sales Automatically, One of the Following

question 17

Multiple Choice

When processing credit card sales automatically, one of the following is not needed -

• A) an Internet connection
• B) the customer's name
• C) the credit card expiry date
• D) all of these are needed

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Definitions:

Denominator

The bottom number in a fraction that shows how many equal parts the item or group is divided into.

Categorical Variable

A variable with categorical data.

Dummy Variables

Variables used in regression analysis to represent categorical data by converting it into a series of binary values.

Levels

The different values or categories that a factor can have in an experiment or statistical model.