Suppose the mean and standard deviation are 74.04 and 9.75 , Ask an Expert

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Health care issues are receiving much attention in both academic and political arenas. A sociologist recently conducted a survey of citizens over 60 years of age whose net worth is too high to qualify for Medicaid and have no private health insurance. The ages of 25 uninsured senior citizens were as follows:

60 61 62 63 64 65 66 68 68 69 70 73 73
74 75 76 76 81 81 86 87 89 90 92

Suppose the mean and standard deviation are 74.04 and 9.75, respectively. If we assume that the distribution of ages is mound-shaped and symmetric

What percentage of the respondents will be between 64.29 and 93.54 years old?

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