The following table summarizes 204 endothermic reactions involving sodium bicarbonate. Final Temperature Conditions Heat Absorbed (cal) Below Target Above Target 266 K 12 40 271 K 44 16 274 K 56 36 Let A denote the event that a reaction's final temperature is 271K or less. Let B denote the e that the heat absorbed is below target. Determine the number of reactions in each of the following events. A U B' and A' n B'. (Show complete solution in your answer sheet)

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