Measuring Usability: Quantitative Usability, Statistics and Six-Sigma

Pages

The following pages have the tag Percentile associated with them. The number of users that have also tagged the page ' Percentile ' is in parenthesis.

Z-Score to Percentile Calculator ( 138 )
Look up the area under the normal curve (1 or two-sided areas) from a standard score (Z-score).

Questions

The following questions have the tag Percentile associated with them. The number of users that have also tagged the question ' Percentile ' is in parenthesis.

How do you calculate a participant score if she was at the 67th percentile? I only have the standard. . . ( 3 )

A test is normally distributed with a mean of 40 and a standard deviation of 7. (a) What score would. . . ( 5 )

what is the difference between percentage and percentile?specially in cat like exams.. . . ( 5 )

How to convert a exam score (standard score) back to Percent score? e.g. Total of students 16, 7. . . ( 6 )

I know that 33 is the raw score of the 85th percentile. How do I determine the mean?. . . ( 5 )

what is the z-score that corresponds to the 20th percentile of the normal distribution. . . ( 6 )

The grades on the midterm given in a large managerial stats class are normally distibuted with mean . . . ( 4 )

What does percentile rank mean?. . . ( 3 )