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 government-sponsored insurance and have no private health insurance. The ages of 25 uninsured older adults were as follows:

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Identify which of the following is the correct statement.

a.Approximately one fourth of the older adults sampled are below 65.5 years of age.

b.The middle 50% of the older adults sampled are between 65.5 and 73.0 years of age.

c.The average age of older adults sampled is 73.5 years of age.

d.All of the above are correct.