What is between 10/6 and 11/6 as a fraction on a number line

What is the quadric regression equation that fits these data

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.

Solve this idk what they want me to do!