42 1. (Volumes of Solids with Known Cross-Sections). Sketch the solid bounded by the surfaces 2² +2²=9₁y² +2²=9 and find its volume. Hint: the surface 2² +2²=9 is a right circular cylinder, it is formed of straight lines perpendicular to the zz-plane coming through points of the circle √₂² +2²=9₁ y=0

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.