Which of the followings is the definition of power? a. Power is the probability of rejecting a null

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Which of the followings is the definition of power?
a. Power is the probability of rejecting a null hypothesis
b. Power is the probability of accepting a null hypothesis
c. Power is the probability of accepting a false null hypothesis
d. Power is the probability of rejecting a false null hypothesis

d. Power is the probability of rejecting a false null hypothesis