Question

Dementia is a person’s loss of intellectual and social abilities that is severe enough to interfere with judgment, behavior, and daily functioning. Alzheimer’s disease is the most common type of dementia. In the article “Living with Early Onset Dementia: Exploring the Experience and Developing Evidence-Based Guidelines for Practice” (Alzheimer’s Care Quarterly, Vol. 5, Issue 2, pp. 111–122), P. Harris and J. Keady explored the experience and struggles of people diagnosed with dementia and their families. A simple random sample of 21 people with early-onset dementia gave the following data on age, in years, at diagnosis. Use limit grouping with a first class of 40–44 and a class width of 5.
a. Determine a frequency distribution.
b. Obtain a relative-frequency distribution.
c. Construct a frequency histogram based on your result from part (a).
d. Construct a relative-frequency histogram based on your result from part (b).


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  • CreatedAugust 13, 2015
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