The height, $$\(h \mathrm{~cm}\)$$, of each of 120 plants is measured. The cumulative frequency diagram shows this information. Use the cumulative frequency diagram to find an estimate of the interquartile range, ........................................ $$\(\mathrm{cm}\)$$
Exam No：0580_w20_qp_42 Year：2020 Question No：4(a)(ii)
Answer:
10 nfww
Knowledge points:
E9.6.1 Construct and use cumulative frequency diagrams.
E9.6.2 Estimate and interpret the median, percentiles, quartiles and interquartile range.
Solution:
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