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(9 Points: 0 of 15 Atotal of 2434 American adults Income Class versus General Health Level responded to a survey about their income -' class and their general health level. The l: .. . . table to the right summarizes their Upper Income 218 234 responses. Answer parts (a) through (e). Middle Income 403 586 . Lower Income 1371', 253 Total 758 " 1073 rst. -_, a. What preportion of the lowerincome adults have excellent health? (Type an integer or decimal rounded to three decimal places as needed.) b. What proportion of the middle-income adults have excellent health? (Type an integer or decimal rounded to three decimal places as needed.) c. What proportion of the upper-income adults have excellent heatth? 0.288 (Type an integer or decimal rounded to three decimal places as needed.)