A Teacher Asked Her Students, "Do You Like Strawberry Ice

question 83

Essay

A teacher asked her students, "Do you like strawberry ice cream?" The responses are shown in the following table.

$\begin{array} { l l l l } & \text { Yes } & \text { No } & \text { Did not answer } \\ \text { Boy } & 1 & 9 & 1 \\ \text { Girl } & 6 & 10 & 1 \end{array}$
If a student is selected at random, find the probability that (a) the student did not answer the question. (b) the student is a girl or answered "No." (c) the student is a boy or answered "Yes."

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Definitions:

Positive Reinforcement

A process in behavior analysis where the probability of a behavior occurring is increased by following it with the addition of a reinforcing stimulus.

Negative Reinforcement

A behavior modification technique that involves the removal of an unpleasant stimulus to increase the likelihood of a desired response.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed. It is thought to be one of the underlying causes of depression.

Biofeedback

A technique that teaches individuals to control bodily processes that are normally involuntary, such as heart rate, through the use of electronic or other instruments.