A. NOT TO SCALE 12cm 145° B. The diagram shows a sector, centre O, and radius 12 cm. (a) Calculate the area of the sector. . cm² (b) The sector is made into a cone by joining OA to OB. Calculate the volume of the cone. [The volume, V, of a cone with base radius r and height h is V=Ar*h.]

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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.