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in 40 of the 60 years from 1946 through 2005 a certain stock market finished higher after the first week of trading. In 34 of
in 40 of the 60 years from 1946 through 2005 a certain stock market finished higher after the first week of trading. In 34 of those 40 years, this market finished higher for the year. The following table gives the first-week and annual performance of the market over this 60-year period. Are the two events "first-week performance" and "annual performance" independent? Explain. 1. No, the probabilities in (a) and (b) are not equal, which means that one event affects the probability of occurence of the other event. 2. No, the probabilities in (a) and (b) are equal, which means that one event affects the probability of occurence of the other event. 3. Yes, the probabilities in (a) and (b) are not equal, which means that neither event affects the probability of occurence of the other event. 4. Yes, the probabilities in (a) and (b) are equal, which means that neither event affects the probability of occurence of the other event
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