Question

An alarming number of U.S. adults are either overweight or obese. The distinction between overweight and obese is made on the basis of body mass index (BMI), expressed as weight/height2. An adult is considered overweight if the BMI is 25 or more but less than 30. An obese adult will have a BMI of 30 or greater. According to a January 2012 article in the Journal of the American Medical Association, 33.1% of the adult population in the United States is overweight and 35.7% is obese. Use this information to answer the following questions.
a. What is the probability that a randomly selected adult is either overweight or obese?
b. What is the probability that a randomly selected adult is neither overweight nor obese?
c. Are the events “overweight” and “obese” exhaustive?
d. Are the events “overweight” and “obese” mutually exclusive?



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  • CreatedJanuary 28, 2015
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