In a study on reinforcement, a researcher allows a rat to choose between four ar

Question

In a study on reinforcement, a researcher allows a rat to choose between four arms of a plus maze. A plus maze is a maze shaped like a plus sign, with each extension from the center being called an "arm" of the maze. Upon being place in the center of the maze, the probability on any given trial that a subject is reinfored in the left arm is .30, the right arm .30, the front arm .20, and the back arm .20. What is the probability the rat will be reinforced when entering the left or right arm? In a study on reinforcement, a researcher allows a rat to choose between four arms of a plus maze. A plus maze is a maze shaped like a plus sign, with each extension from the center being called an "arm" of the maze. Upon being place in the center of the maze, the probability on any given trial that a subject is reinfored in the left arm is .30, the right arm .30, the front arm .20, and the back arm .20. What is the probability the rat will be reinforced when entering the left or right arm? In a study on reinforcement, a researcher allows a rat to choose between four arms of a plus maze. A plus maze is a maze shaped like a plus sign, with each extension from the center being called an "arm" of the maze. Upon being place in the center of the maze, the probability on any given trial that a subject is reinfored in the left arm is .30, the right arm .30, the front arm .20, and the back arm .20. What is the probability the rat will be reinforced when entering the left or right arm? In a study on reinforcement, a researcher allows a rat to choose between four arms of a plus maze. A plus maze is a maze shaped like a plus sign, with each extension from the center being called an "arm" of the maze. Upon being place in the center of the maze, the probability on any given trial that a subject is reinfored in the left arm is .30, the right arm .30, the front arm .20, and the back arm .20. What is the probability the rat will be reinforced when entering the left or right arm? In a study on reinforcement, a researcher allows a rat to choose between four arms of a plus maze. A plus maze is a maze shaped like a plus sign, with each extension from the center being called an "arm" of the maze. Upon being place in the center of the maze, the probability on any given trial that a subject is reinfored in the left arm is .30, the right arm .30, the front arm .20, and the back arm .20. What is the probability the rat will be reinforced when entering the left or right arm?

Explanation / Answer

Probability of reinforcing in the left arm = 0.30

Probability of reinforcing in the right arm = 0.30

Hence, P(left or right arm) = P(left arm) + P(right arm) = 0.30 + 0.30

= 0.60 (Ans)

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