It is generally believed that nearsightedness affects about 15% of all children. A local elementary school registered 120 incoming kindergarteners. Note that this scenario is talking about a sampling distribution since this school is a sample of size 120. Therefore, you will need to calculate the standard deviation using a formula before using the normalcy and invNorm commands. If this school measures at the 80th percentile for all incoming kindergarten classes of size 120, what proportion of incoming kindergarteners are nearsighted?

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