| # | | Question | Helpful Rating | Tags |
| 294 |
 |
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? | | Z-Score, Percentile, Percentile Rank |
| 266 |
|
what is the difference between percentage and percentile?specially in cat like exams. | | Percentile |
| 180 |
 |
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
70
77
77
67
| 65.71 | Standard Score, Percentile, Percent Score |
| 167 |
|
I know that 33 is the raw score of the 85th percentile. How do I determine the mean? | | Percentile, Standard Deviation |
| 146 |
|
what is the z-score that corresponds to the 20th percentile of the normal distribution | 84.29 | Z-Score, Percentile, .20 |
| 70 |
|
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 class wants to assign an A to top 10%, B to the next 10%, C to next 10%, D to next 10%, and an F to all scores below the 60th percentile. Find the lowest acceptable score within each established range. For example, the lowest acceptable score for an A is the score at the 90th percentile. | | Z-Score, Percentile |
| 27 |
|
What does percentile rank mean? | | Percentile, Percentile Rank |
