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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
In a recent survey of high school students,it was found that the average amount of money spent on entertainment each week was normally distributed with a mean of $52.30 and a standard deviation of $18.23.Assume that these values are representative of all high school students.
-The probability is 65% that the average spending of a sample of 25 randomly-selected students will spend at least how much?

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P( blured image
≥ a)= 0.65 ⇒ P(...

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