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About 74 % of the residents in a town say that they are making an effort to conserve water or electricity. 100 residents are randomly

About 74 % of the residents in a town say that they are making an effort to conserve water or electricity. 100 residents are randomly selected.

1. What are the mean and standard deviation of the proportion of sampled residents who are making an effort to conserve water or electricity?

What is the probability that the proportion of sampled residents who are making an effort to conserve water or electricity is greater than 80%?

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