2. Speaking of violence in Chicago, the table below shows the number of murders in Chicago from 2001 through 2012. Find the mean and the median number of murders over this time period. Why are these two numbers so different for these data? Look up these terms if you don't remember what they mean. TABLE 1.1 Violence in Chicago Year 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Murders 667 656 601 451 471 448 513 459 436 435 506 3. Suppose you wanted to use a chart to summarize the above data about murders in Chicago. Would a bar chart ora histogram be more appropriate? Defend your answer, and use the space below to construct the chart you've chosen. If you don't remember the difference between the two types of charts, look it up. 10 BEYOND THE NUMBERS 1 3

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.