olds in the region, 500,000 purchase the shampoo category. Among this group, olds purchased All-over shampoo. Households that bought All-over brand sham ed 598,000 bottles of All-over. Those same households purchased 858,000 bo o in total. The average consumption of households that bought any brand of sh z bottles. However, All-over is targeted at heavy users. the brand penetration of All-over shampoo? 0 0% percent

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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.