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?

Answer 1

Answer:

The probability that a randomly selected adult is either overweight or obese is 0,688

Step-by-step explanation:

Probability that an american adult is overweight = 0,331

Probability that an american adult is obese = 0,357

Let's find the probability that an adult is either overweight or obese, that means both events are mutually exclusive. We are interested in the probability that just one event occurs, that probability is the sum of their individual probabilities

P(overweight ∪ obese) = P(overweight) + P(obese) = 0,331 + 0,357 = 0,688