Data on the Amount of Money Made in a Year

question 45

Multiple Choice

Data on the amount of money made in a year by 1000 families in a small town were collected. You want to know the difference in the amount of money made in that year by the middle 50% of the 1000 families. Which of the following would you compute?

• A) arithmetic mean
• B) median
• C) interquartile range
• D) coefficient of correlation

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Definitions:

Negative Reinforcement

A behavioral concept where an unpleasant stimulus is removed following a desired behavior, increasing the likelihood of that behavior being repeated.

Positive Reinforcement

The addition of a rewarding stimulus following a desired behavior, making it more likely that the behavior will occur again.

Contingency

Describes a future event or circumstance that is possible but cannot be predicted with certainty.

Operant Conditioning

A learning process in which the strength of a behavior is modified by its consequences, such as reward or punishment.