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Sulfate content in water samples from a lake has a mean of 7.5 mg/L with a standard deviation of 1.5 mg/L. What is the probability that mean sulfate of 9 randomly selected water samples is below 7 mg/L?
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Sulfate content in water samples from a lake has a mean of 7.5 mg/L with a standard deviation of 1.5 mg/L. What is the probability that mean sulfate of 9 randomly selected water samples is below 7 mg/L?

0.0228


No enough information


0.1587


0.3694

User Brayn
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7.6k points

1 Answer

2 votes

The correct answer is C.

User Dhdz
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7.3k points
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