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.Suppose you are told that there is an 80% probability that a randomly-selected student spends somewhere between $49.74 and $54.86.What is the standard deviation of the amount of money spent by high school students monthly?

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The Answer of 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.Suppose you are told that there is an 80% probability that a randomly-selected student spends somewhere between $49.74 and $54.86.What is the standard deviation of the amount of money spent by high school students monthly?

In a Recent Survey of High School Students,it Was Found