A pediatrician tested the cholesterol levels of several young patients. The following relative-frequency histogram shows the readings for some patients who had high cholesterol levels. a. What percentage of patients have cholesterol levels between 205 and 209, inclusive? 15 % b. What percentage of patients have levels of 215 or higher? Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers.
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Looking at the histogram, we can see that the bar representing this range has a height of 0.3, which means 30% of the patients have cholesterol levels in this range. Show more…
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Cholesterol Levels. According to the National Health and Nutrition Examination Survey, published by the Centers for Disease Control and Prevention, the average cholesterol level for children between 4 and 19 years of age is 165 mg/dL. A pediatrician who tested the cholesterol levels of several young patients was alarmed to find that many had levels higher than $200 \mathrm{mg} / \mathrm{dL}$. The following relative-frequency histogram shows the readings for some patients who had high cholesterol levels. Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers. a. What percentage of the patients have cholesterol levels between 205 and 209, inclusive? b. What percentage of the patients have levels of 215 or higher? c. If the number of patients is $20,$ how many have levels between 210 and 214, inclusive?
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Cholesterol Levels. According to the National Health and Nutrition Examination Survey, published by the Centers for Disease Control and Prevention, the average cholesterol level for children between 4 and 19 years of age is 165 mg/dL. A pediatrician who tested the cholesterol levels of several young patients was alarmed to find that many had levels higher than $200 \mathrm{mg} / \mathrm{dL}$. The following relative-frequency histogram shows the readings for some patients who had high cholesterol levels.
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