A fashion company selected 100 12-year-old boys and 100 12-year-old girls to audition as models. The heights, hcm, of the selected children are represented in the following graph.
a. What features of the data suggest that the children were not selected at random?
b. Estimate the number of girls who are taller than the shortest 50 boys.
c. What is the significance of the value of h where the graphs intersect?
d. The shortest 75 boys and tallest 75 girls were recalled for a second audition. On a cumulative frequency graph, show the heights of the children who were not recalled.
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