A playground is in the shape of hexagon ABCDEF. Scale: 1 unit = 5 yards Which of the following is the BEST approximation of the amount of fencing needed for the perimeter of this playground? O A. 75 yards B. 90 yards C. 85 yards D. 80 yards

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A: Given that:  Population mean

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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.