If a Star's Measured Parallax Is 0

question 11

Multiple Choice

If a star's measured parallax is 0.2 arcsec,what is its distance?

• A) 5 pc
• B) 20 pc
• C) 40 pc
• D) 50 pc

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Definitions:

Variable Ratio

A variable ratio is a schedule of reinforcement where a response is rewarded after an unpredictable number of responses, often used in behavior analysis.

Soft-Drink Vending Machine

A machine that dispenses cold beverages, such as sodas and juices, usually upon insertion of a coin or token.

Schedule

A plan that gives expected times for different things to happen.

Fixed Interval

In the context of reinforcement, it refers to a schedule where rewards are delivered at consistent time intervals after a desired behavior is performed.