The time to complete an exam is approximately Normal with a mean of 47 minutes and a standard deviation of 8 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. μ-3σ μ-2σ μ-σ н 47 = = 8 o= H μ+O μ+2σ μ+30

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