2.3.103 E-Question Help A pediatrician tested the cholesterol levels of several

Question

2.3.103 E-Question Help A pediatrician tested the cholesterol levels of several following relative-frequency histogram shows the readings for some patients who had high cholesterol levels young patients. The a. What percentage of patients have choiesterol leveis between 200 and 204,inclusive? 10% b. What percentage of patients have levels of 215 or higher? 25 % c. If the number of patients is 20, how many have levels between 210 and 0 4 195 205 215 225 214, inclusive? patients Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers.

Explanation / Answer

The relative frequency for the class 210 - 214 = 0.35

Hence,

Number of levels between 210 and 214 = 0.35*20 = 7

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