Find the Indicated Probability

question 155

Multiple Choice

Find the indicated probability.
-In a certain class of students, there are 8 boys from Wilmette, 4 girls from Winnetka, 6 girls from Wilmette, 7 boys from Glencoe, 4 boys from Winnetka and 6 girls from Glencoe. If the teacher calls upon a student to answer a question, what is the probability that the student will be a boy?

• A) 0.543
• B) 0.229
• C) 0.621
• D) 0.429

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Definitions:

Generalization Gradient

Refers to the decrease in response strength as stimuli become less similar to the conditioned stimulus in classical or operant conditioning.

Discriminative Stimulus

A stimulus in the presence of which a particular response will be reinforced, and in the absence of which that response will not be reinforced.

Reinforcement

An event (or termination of an event) that increases the frequency of the operant behavior that preceded it.

Attentional View

A theoretical perspective focused on how individuals allocate their attentional resources among various stimuli or tasks.