A small Fashion Boutique sells its clothing in four size categories: Baby, Toddler, Big Kids and Adults. All the clothes are on a clothing Rack but are not organised by size. The manager wants to select a sample of 30 items of clothing to determine the average price per clothing item.  Identify the sampling techniques suggested by each of the methods A, B, C and D A-  Number each outfit and select according the number you obtain when you dip in a bag. B-  Select a number of outfits from each size category in proportion to the total number of clothing item in that size. C -Select every 5th off the rack until a sample of 30 is selected. D Select the first 30 outfits off the rack.

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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.