If bx y then x log b y. The logarithm inherits certain useful properties directly. So normally you would calculate SXX sumx-xbar2.
For the sake of simplicity I round log 1024 to 3.
In particular we study the case in which the base is greater than the input value as well as cases as well as the case in which the base and input values arent simple powers of each other by finding a common base. 2 The value of n is 1 because 25 10 1. Endgroup Collin Dec 2 13 at 358. Turn the variable inside the log into an exponential equation which is all about the base of course.