QuestionHow many runners are aged 40 or older based on the relative frequency of ages: $40-49$ (40\%), $50-59$ (12\%), $60-69$ (8\%)?

Studdy Solution
Calculate the number of runners who are forty or older.
$$Number\, of\, runners_{40\, or\, older} =75 \times0.6 =45$$There are45 runners who are forty or older.