Home › CBEST › Mathematics › Descriptive Statistics › Scoring in the 90th percentile on a test means w…
Scoring in the 90th percentile on a test means what?
AYou answered 90 percent correctly
B90 percent scored above your mark
C90 percent scored at or below you
DYou beat 90 people on the test
Answer & Solution
Correct answer: C. 90 percent scored at or below you
1. A percentile reports where a score stands relative to all the other scores.
2. It says nothing at all about how many questions were answered correctly.
3. The 90th percentile means 90 percent of scores are the same as or less than yours.
4. The other 10 percent are the same as or greater than yours.
_Source: OpenStax High School Statistics (CC BY 4.0), Ch 2 "Descriptive Statistics" and Ch 3 "Probability Topics", section 2.3 Measures of the Location of the Data_
Related questions
When first looking at a graph of data, you should look for an overall pattern and any:Measures of location, as opposed to centre or spread, are quartiles and:Alongside stemplots and box plots, the third standard display for one variable is the:Alongside range and standard deviation, the third standard measure of spread is:The third measure of centre, besides mean and median, is the:Looking at house prices, a better summary than the mean alone is the median together with:Comparing the mean and the median, outliers:When a distribution is skewed to the right, the mean is usually: