A Fair Coin Is Tossed Three Times

question 18

Multiple Choice

A fair coin is tossed three times. Find the probability of getting exactly two heads.

• A) 1/2
• B) 1/3
• C) 2/3
• D) 3/8

---

Definitions:

Fixed Interval

A schedule in operant conditioning where the first response is rewarded only after a specified amount of time has elapsed.

Variable Ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, making it highly effective in maintaining behavior.

Fixed-ratio Schedule

A type of reinforcement schedule in operant conditioning where a response is reinforced only after a specified number of responses, leading to high and steady response rates.

Reinforcement

In psychology, a process in which a behavior is made more likely to occur in the future by its consequences.