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The table below shows the 60 children in a class sorted according to their heights

Height (cm)Number of children’s
140-1455
145-1508
150-15512
155-16016
160-16511
165-1705
170-1753

Find the median height?

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Best answer
Height (cm)Number of children’s
below 140-1455
below 145-15013
below 150-15525
below 155-16041
below 160-16552
below 165-17057
below 170-17560

Height of 30th child = 155+\(\cfrac{5}{32}\)+4\(\cfrac{5}{16}\)

= 155\(\cfrac{5}{32}\)+\(\cfrac{40}{32}\)= 156\(\cfrac{13}{32}\)

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