So we have the equation for our line. Logistic functions are used in logistic regression to model how the probability of an event may be affected by one or more explanatory variables. Linear-regression models are relatively simple and provide an easy-to-interpret mathematical formula that can generate predictions.
Different graphing calculators have different procedures for using linear regressions but in general the calculator should return a linear equation.
X1-lets say -3 first value from our data-set y1 05 -3 1. In statistics linear regression is a method of estimating the conditional expected value of one variable y given the values of some other variable or variables x. V0 is the y-intercept of the regression line. Using the above formula we can do the calculation of linear regression in excel as follows.