solve it correctly please. I ll rate accordingly.

The scores for a pop quiz in Statistics 101 are 0, 1, 2, 3, 4,5,6, 7,8,9, 10, 11, ud 12. The students receive their scores in whole number. The mean score for that pop quiz is 9.3 and the standard deviation is 1.6. Assume that students scores to be normally distributed, determine (a) the maximum score of the lowest 15% ind (b) the minimum score of the highest 85%