In a T- maze, a rat is given food if it turns left And an electric shock if it turns right. On the first trial there is a 50– 50 chance that a rat will turn either way; then, if it receives food on the first trial, the probability is 0.68 that it will turn left on the next trial, And if it receives a shock on the first trial, the probability is 0.84 that it will turn left on the next trial. What is the probability that a rat will turn left on the second trial?
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