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10 cards from this deck
Class with the highest frequency in the data
Locate class containing the median position via cumulative frequency
L + ((0.5n - F) / f) × w
Find where the median position falls in cumulative totals
Data values are only estimated, not precise
Modal class = interval with highest frequency (20)
Median position = (n + 1) ÷ 2 = 46th value
L lower bound; n total freq; F cum before class; f class freq; w width
46th; median class 25≤N<35 (cumulative freq = 54)
29.7 (to 3 s.f.)
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