Anorexia nervosa is an eating disorder characterized in part by the fear of becoming fat and by voluntary starvation it often

Question

Anorexia nervosa is an eating disorder characterized in part by the fear of becoming fat and by voluntary starvation it often leads to death from suicide or organ failure A Canadian study surveyed 691 adolescent girls diagnosed with anorexia nervosa and their families The figure shows the density curve solid line summarizing the histogram of the data dotted line The density curve has been chopped into three parts shown in different shades Under U years W4 12 Obut und 16 years old Ageat at of 16 years old more 11 Macmillan Learning If we let X represent the age at onset of anorexia describe the event 13 X 16 in words O Anorexia onset before age 13 or at age 16 O Anorexia onset at age 13 or greater but before age 16 O Anorexia onset at age 13 or at age 16 O Anorexia onset after age 13 but before age 16 What is its probability Enter your answer rounded to two decimal places P 13 X 16

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