Katie is shopping and has found 6 coats and 5 hats that she likes. (a) If Katie decides to buy one coat and one hat, how many different options does she have for which items she will buy? (b) If Katie decides to buy 2 coats, how many different options does she have for which coats she will buy? (c) If Katie decides to buy 2 of the 6 coats and 2 of the 5 hats, how many different options does she have?

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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.