Based on a recent survey, 20% of adults in a specific country smoke. In a survey of 60 students, it is found that 8 of them smoke. Find the probability that should be used for determining whether the 20% rate is correct for students. What can be concluded? The probability that should be used for determining whether the 20% rate is correct is (Round to four decimal places as needed.)

Q: C3x2 + – 4 kx - 5x- 6.

A:

Q: 20

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A: Explanation and solutions is given below....

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A: Given: The figure,

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