A medical practice surveyed a random sample of 80 patients to determine whether their facility should open earlier in the morning or close later in the evening. Of the 80 patients surveyed, 37.5% preferred that the facility open earlier. Based on this information, about how many of the practice's 600 patients would be expected to prefer that the facility open earlier in the morning?

Answer

B

Explanation

Difficult: Easy
Category: Problem Solving and Data Analysis/ Statistics and Probability.
Strategic Advice: When a random sample is used to survey part of a population, the results are fairly representative of the entire population.
Getting to the Answer: Because the medical practice surveyed a random sample, the percent of all the patients expected to prefer that the facility open earlier can be estimated by the percent of patients who preferred that option in the sample, 37.5%. Therefore, of the practice's 600 patients, approximately `600times0.375=225` patients would be expected to prefer that the facility open ealier.