A Random Variable Is Normally Distributed with a Mean of 25

question 99

Multiple Choice

A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution, what value will 15% of the observations be below?

• A) 19.8
• B) 16.2
• C) 18.7
• D) 17.2

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Definitions:

Positive Reinforcement

A technique in behavior management that reinforces desired behaviors by rewarding them, encouraging their repetition.

Shaping

A technique used in behavior modification that involves successively reinforcing behaviors that approximate the target behavior.

Shielding

A protective measure to block harmful elements or prevent unwarranted access to sensitive information or materials.

Reinforcement Strategy

A technique in behavioral management where behaviors are encouraged or discouraged through rewards or punishments.