Google has changed its strategy with regard to how much and over which media it invests in advertising. The following table shows Google's marketing budget in millions of dollars for 2008 and 2011 (The Wall Street Journal, March 27, 2012).   2008 2011 Internet $26.0   $123.3   Newspaper, etc. $4.0   $20.7   Television $0.0   $69.3     a.  Select a side-by-side bar chart with year as the variable on the horizontal axis.

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.