Find the standard deviation of the ages of soprano singers to the nearest tenth. the ages of soprano singers in a town choir are 63, 42 ,28,45,36,48,32,40,57 & 49

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

This question awards 100 ! i really don’t want to fail i will also mark you !

Does anyone know how to do geometryme with this problem