Satell only part of Ea s surface. can measure the angle shown in the figure. the satellite's distance from Earth's surface, and let r represent Earth's radius. 95 4* 0 11EET 01 E h 2597 21 0 01 6-2 27 (a) Show that h = r(csc 0 1). (b) Find the rate at which h is changing with respect to e when 0 = 30°. (Assume r 4000 miles.) 8C IOFinding a Second Derivative In Exercises 91-100, find the second derivative of the function. 91. f(x) = 2 +7x 4 92. f(x) 2x3 5x2 93. f(x)= 4x3/2 94. f(x)= x2 +3x 3 95. fx) = x- 1 97. f(x) = x sinx x2 3x 96. f(x)= x - 4 98. f(x)= x cos x 99. f(x) = CSC x 100. f(x) sec x

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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.