Mathematics, 24.04.2020 02:00 zackarygonzalez1028

The scores of high school seniors on the ACT college entrance examination in a recent year had a mean of 19.2 and a standard deviation of 5.1. The distribution of scores is not exactly Normal (ACT score is clearly not a continuous variable) but the Normal curve is a close approximation. (I will show an example in class.)
What is the approximate probability that a single student randomly chosen from all those taking the test scores 27 or higher?

The approximate probability is .

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The scores of high school seniors on the ACT college entrance examination in a recent year had a mea...