Question

“Ozzie and Harriet Don’t Live Here Anymore” (San Luis Obispo Tribune, February 26, 2002) is the title of an article that looked at the changing makeup of America’s suburbs. The article states that nonfamily households (for example, homes headed by a single professional or an elderly widow) now outnumber married couples with children in suburbs of the nation’s largest metropolitan areas. The article goes on to state: In the nation’s 102 largest metropolitan areas, “non-families” comprised 29 percent of households in 2000, up from 27 percent in 1990. While the number of married-with-children homes grew too, the share did not keep pace. It declined from 28 percent to 27 percent. Married couples without children at home live in another 29 percent of suburban households. The remaining 15 percent are single-parent homes. Use the given information on type of household in 2000 to construct a frequency distribution and a bar chart. (Be careful to extract the 2000 percentages from the given information). This activity requires Internet access. TweetVolume is a web site that allows you to enter up to three words to produce a bar chart based on how often those words appear on Twitter.
1. Go to www.tweetvolume.com and spend a few minutes experimenting with different words to see how the site works. For example, in July 2010, the words statistics, sample and population resulted in the following bar chart.
2. Find a set of three words that result in a bar chart in which all three bars are approximately the same height.
3. Find a set of three words that satisfy the following:
i. One word begins with the letter a, one word begins with the letter b, and one word begins with the letter c.
ii. The word that begins with the letter a is more common on Twitter (has the highest bar in the bar graph) than the other two words. iii. The word that begins with the letter b is more common on Twitter than the word that begins with the letter c.


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  • CreatedSeptember 19, 2015
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