Mathematics, 21.11.2019 06:31 jay5902

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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