 9 Questions returned
# 778 :: 7/12/09 200 students took a test. The scores were normally distributed. Your score was in the 60th percentile. How many people scored at or below your score?. . .
# 459 :: 10/5/08 How do you calculate a participant score if she was at the 67th percentile? I only have the standard deviation of the population and the mean. s = 27 . . .
# 294 :: 7/28/08 A test is normally distributed with a mean of 40 and a standard deviation of 7. (a) What score would be needed to be in the 85th percentile?. . .
# 266 :: 7/8/08 what is the difference between percentage and percentile?specially in cat like exams.. . .
# 180 :: 5/5/08 How to convert a exam score (standard score) back to Percent score? e.g. Total of students 16, 71 76 56 79 74 72 68 75 77 61 81 75 7. . .
# 167 :: 4/24/08 I know that 33 is the raw score of the 85th percentile. How do I determine the mean?. . .
# 146 :: 4/9/08 what is the z-score that corresponds to the 20th percentile of the normal distribution. . .
# 70 :: 12/10/07 The grades on the midterm given in a large managerial stats class are normally distibuted with mean 75 and standard deviation 9. Instructors of this c. . .
# 27 :: 10/29/07 What does percentile rank mean?. . .