A set of data is ordered from smallest to largest. What is the name given to the measure that is one quarter along the ordered data?

Answer options:

range

lower quartile

upper quartile

median

How to approach this question

Read the definition carefully. The question asks for the measure that is "one quarter" along the ordered data. Recall the definitions of range, lower quartile, upper quartile, and median to identify the correct term.

Full Answer

B.lower quartile✓ Correct

The quartiles, along with the median, divide an ordered data set into four equal parts. The lower quartile (Q1) is the point below which 25% (one quarter) of the data lies. The median (Q2) is the midpoint (50% or two quarters). The upper quartile (Q3) is the point below which 75% (three quarters) of the data lies.

Common mistakes

✗ Confusing lower quartile with upper quartile.\n✗ Confusing quartiles with the range or median.

All questions Question 02

Practice the full AQA GCSE Statistics Foundation Tier Paper 2

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