question archive Using information provide in table 1, how many children are in the interquartile range of shy behavior? Table 1
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Using information provide in table 1, how many children are in the interquartile range of shy behavior? Table 1. Baseline characteristics of children taking part in a longitudinal study (N=2148) n % Shy behavior Lowest quartile 449 20.9 Second quartile 496 23.1 Third quartile 503 23.4 Highest quartile 495 23.1 Missing 205 9.5 Based on teacher rated report fall of first grade, missing absent on assessment day
C. 999
Given that lowest quartile has 449 children
Number of children between lowest quartile and median (second quartile) = 496
Number of children between second quartile and third quartile = 503
So, Interquartile range = Children between second quartile and third quartile + Children between lowest quartile and second quartile
= 496 + 503
= 999
Therefore, Interquartile range has 999 children