Mathematics, 05.06.2020 00:57 ashhleyjohnson

The test grades at a large school have an approximately normal distribution with a mean of 50 and a standard deviation of 5 points. What is the score that cuts off the top 10% of the scores? It would be greatly appreciated if someone could also explain how they got to the answer, so I'll understand in the future. <3

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The test grades at a large school have an approximately normal distribution with a mean of 50 and a...