For questions 1 - 2, use the mean and standard deviation to compare two test scores from different classes. 1. In a normal distribution with mean u and standard deviation σ, 95% of the data fall within what range? Answer choices: 2. In a normal distribution with mean u and standard deviation σ, 99.7% of the data fall within what range? Answer choices: μέσ H±20 με 3σ H±40 με σ H±20 H±3gp με 40

Q: Step 1 (a) Compute the coefficient of variation. Recall that if u represents the population mean and…

A: To find: Coefficient of Variation (CV)

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Q: distribution shown in the preceding histogram is    .   Based on the shape of the distribution,…

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