Home › BAF (Bachelor of Accounting & Finance) › Business Statistics › Descriptive Statistics › Scoring in the 90th percentile of an examination…
Scoring in the 90th percentile of an examination means what?
AYou answered 90 percent of the questions correctly
BNinety percent of scores are the same or less than yours
CNinety percent of candidates scored higher than you did
DYou scored 90 marks more than the average candidate
Answer & Solution
Correct answer: B. Ninety percent of scores are the same or less than yours
1. A percentile describes standing against other candidates, not marks earned.
2. The 90th percentile has 90 percent of the scores at or below it.
3. Only about 10 percent of scores are the same or higher than yours.
4. Reading it as 90 percent correct confuses a rank with a raw mark, which is the trap the definition warns against.
_Source: OpenStax Introductory Business Statistics (CC BY 4.0), Ch 2 "Descriptive Statistics", section 2.2 Measures of the Location of the Data_
Related questions
The median differs from the mean in that the median does not have to be:Quartiles and percentiles are together described as the common measures of:The median of that set, 4, 5, 6, 6, 6, 7, 7, 7, 7, 8, is:For that same set of ten values, the median is the average of which two ordered values?For the data 4, 5, 6, 6, 6, 7, 7, 7, 7, 8, the most frequent value is:A data set whose values sit closely near the mean will have a standard deviation that is:The variation of data values around the centre is captured by the:A quick graph that shows the exact values while revealing the pattern is a: