Final Answer:
IQR would be more appropriate.
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Explanation:
Look at the numbers: 32, 35, 76, 29, 30, 32, 31, 39, 28, 34.
You can see one number — 76 — is way bigger than all the others. That’s called an outlier.
Range = biggest number – smallest number.
If you use range here, 76 will make the range super big, and that doesn’t really show what most of the numbers are like.
IQR (Interquartile Range) only looks at the middle part of the data — it ignores the very high and very low numbers. So IQR gives a better idea of how spread out the “normal” numbers are.
That’s why IQR is better here — because of that outlier (76).
Parent Tip: Review the logic above to help your child master the concept of box plots worksheet pdf.