You plan to study the relation between x = age and y = whether a member of Face book (1 = yes, 0 = no).

A priori, you predict that P (Y = 1) is currently about 0.80 at x = 18 and about 0.20 at x = 65.

is this describes the logistic regression model relation well?

Approximate the value for the effect of x in the model.

if this question needs R code please give me R code and answer

thank you.