The American Community Survey of 2012 was a random survey which queried adults about employment status,...
The American Community Survey of 2012 was a random survey which queried adults about employment status, race, age, language spoken at home, and a variety of other questions. Below is a histogram of the ages of the respondents.
(a) Describe the distribution using the proper terminology (shape, center, spread, etc.).
(b) What shape would you expect the age distribution to have?
(c) What is interesting about the frequencies of the bins? Why are they as they are?
Homework Answers
(a) The distribution of ages is slightly skewed to the right. The average age is about 40 years. The distribution of age ranges from 0 to 100.
(b) We expect the age distribution slightly skewed because most of the people lies between 25-60. Only few are above 60.
(c) We can see the frequency of Bin 0-10 is about 250. This means some of the respondents are between age 0 and 10. The survey queried adults only so how can there be a bin ages 0-10.
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