a) Sketch the graph of 7(t) =< cost, t, sin t >and show the direction of the increasing t, where 0 c) If 7(1) represents the position vector of a moving object on this curve, find v(1) and ã(t) of the moving object.

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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.