Question 277:
1Answer:
No answer provided yet.First, find the z-score corresponding to 90% of the area of the normal curve using the percentile to z-score calculator (select 1-sided) and you should get 1.2822. So you need to solve an equation to find what score gets you this z-score.
(195 - x)/30 = 1.2822
195-x = 38.46
156.54 = x
So the minimum score would be 157 rounding up to the nearest integer.