A Company Is Studying the Number of Daily Debit Card

question 94

Short Answer

A company is studying the number of daily debit card purchases. If there were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases? ____

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Definitions:

Damage

Physical harm caused to something in such a way that it is impaired or its value or usefulness is decreased.

Opponent-Process Theory

A theory explaining how the perception of colors is controlled by two opposing systems, leading to color vision and afterimages.

Turned "Off"

Refers to a state where a device or system is not in operation or functioning.

Green Light

A signal to proceed or an indication that an action, project, or initiative is approved or acceptable.