Mathematics for IGCSE & O level - Statistical Diagrams (Section 1 - No. 37)
In the context of a cumulative frequency diagram, how is the lower quartile determined?
By finding the x-axis value at 25% of the total frequency.
By finding the x-axis value at 50% of the total frequency.
By finding the x-axis value at 75% of the total frequency.
By finding the difference between the upper and lower limits of the data.
Explanation
The lower quartile is at the 25th percentile.
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