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Lengths (mm) Frequency () Use the cumulative frequency curve (ogive) to estimate: the median length. the upper quartile. the lower quartile. 25 – 29 2 30 – 34 4 35 – 39 7 40 – 44 10 45 – 49 8 50 – 54 6 55 – 59 3 Solution. The cumulative frequency table is constructed below. ................
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