Let D be a region bounded by a simple closed path C in the xy-plane. The coordinates of the centroid (x, y of D are 1 1 x = 2A x2 dy 2A . y2 dx where A is the area of D. Find the centroid of a quarter-circular region of radius a.

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A: Please rate and feel free to ask any query about any part of the question .

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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.