The average math SAT score for students applying to Suffolk University last year was 510, with a standard deviation of 89. 13. What score does an applicant need in order to be in the top 5% of math SAT scores?

14. What score does an applicant need in order to be in the bottom 2% of math SAT scores?

15. Between what score does an applicant need in order to be in the middle 20% of math SAT scores?

In a study conducted by biologists Sokal and Hunter, the wing lengths of houseflies was found to be approximately normally distributed, with a mean wing length of 45.5 mm, and a standard deviation of 3.92.

16. Find the probability that a housefly has a wing length of less than 38 mm.

17. Find the probability that a housefly has a wing length of greater than 39 mm.

18. Find the probability that a housefly has a wing length between 46 and 51 mm