suroundgun 2000 freshmen at State University took a biology test. The scores were distributed normally with a mean. mean of 70 and a standard deviation of 5. Label the mean and three standard deviations from the 7. a. Label the distribution above with the mean and the test scores 1, 2, and 3 standard deviations above and below the mean in the appropriate blanks above. b. About 99.7% of the test scores should be between and c. About 68% of the test scores should be between and d . What would be more unusual, a score of 85 or a failing score? Explain. 8. According to a gestation chart I found, a human pregnancy lasts 278 days, an elephant has an average gestation of 624 days, and a kangaroo has a gestation of about 36 days. I calculated the standard deviation for all three and found that the standard deviation for the elephant was almost exactly the same as the standard deviation for the kangaroo. Do you think that my calculations are correct? Support your