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