Example 2.21 from Statistics, 2.3 Measures of the Location of the Data

Measures of the Location of the Data: example 2.21

On a 20-question math test, the 70^th percentile for number of correct answers was 16. Interpret the 70^th percentile in the context of this situation.

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

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Solution
- Seventy percent of students answered 16 or fewer questions correctly.
- Thirty percent of students answered 16 or more questions correctly.
- A higher percentile could be considered good, as answering more questions correctly is desirable.

How did it go?

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Solution