Card 9 / 11: The following scenario is applied to questions 6 and 7: You are a pediatrician who only sees patients who are 6 years old and have red hair. The distribution of the height of 6 year olds is approximately normal with a mean of 40 inches and a standard deviation of 3 inches. expected to have heights between 37 and 43 inches?Assuming you see 100 patients during the week of October 4th, how many would be
Answer:
37 and 43 are one standard deviation above and below the mean of 40. By the 68?-95?-99 rule described in the notes, we would expect about 68%, or 68 out of 100 patients to fall within one standard deviation unit of the mean.
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Epidemiology Biostatistics Descriptive Statistics
Author:
Dr.Janet ForresterProfessor
Tufts University School of Medicine
USA
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