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AP Statistics Summary 2025 EXAM Addition Rule - CORRECT ANSWERSP(A ∪ B) = P(A) + P(A) - P(A ∩ B) aids in computing the chances of one of several events occurring at a given time. Alpha (α) - CORRECT ANSWERSThe probability of a Type I error. See signifi
AP Statistics Summary 2025 EXAM 
Addition Rule - CORRECT ANSWERSP(A ∪ B) = P(A) + P(A) - P(A ∩ B) aids in 
computing the chances of one of several events occurring at a given time. 
Alpha (α) - CORRECT ANSWERSThe probability of a Type I error. See significance 
level. 
Alternative Hypothesis - CORRECT ANSWERSThe hypothesis stating what the 
researcher is seeking evidence of. A statement of inequality. It can be written looking for 
the difference or change in one direction from the n...