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Question

a. The National Coffee Association reported that 63% of Malaysia adults drink coffee daily. A

random sample of 250 Malaysia adults is selected.

Find the standard deviation.

Find the probability that more than 67% of the sampled adults drink coffee daily.

Find the possibility that the proportion of the sampled adults who drink coffee daily is

between 0.6 and 0.7.

Find the probability that less than 62% of the sampled adults drink coffee daily.

Would it be unusual if less than 57% of the sampled adults drink coffee daily?

Tagged in

Math

Probability

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