@ Points of3 A pediatrician tested the cholesterol levels of several young _ a. What percentage of patients have cholesterol patients. The following relative-frequency histogram shows levels between 195 and 199,inclusive? the readings for some patients who had high cholesterol levels. ' 15 % b. What percentage of patients have levels of 215 or higher? D% Relative frequency 195 205 215 225 ' Cholesterol level Use the graph to answer the following questions. Note that cholesterol levels are always expressed as whole numbers