Among first-year students at a certain university. scores on the verbal portion of the SAT follow the normal distributions. The mean is about 500 and the standard deviation is about 100. Which of the following statement is correct? Use Z table if you need. a. andrew's score is in the 30th percentile, so we know his score is 475. b. John scored 490 and so his score is 0.1 standard deviations below from the mean. c. The percentage of the students that score between 500 and 600 is roughly 68% d. If we randomly select a studen, the probability that his score is less than 400 is smaller than 10%