Dementia is a person's loss of intellectual and social abilities that is severe enough to interfere with judgment, behavior, and daily functioning. In an article, researchers 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 accompanying data on age, in years, at diagnosis. Use a first class of 40-44, a second class of 45-49, etc. and a class width of 5 to complete parts (a) and (b) below. 52 51 60 59 53 44 56 51 62 53 64 50 64 52 49 47 52 49 57 63 49 a. Determine a frequency distribution. (type integers or decimals. Do not round.) b. Construct a frequency histogram based on your result from part a