Stress vs. strain data for a composite material.

strain=[0 0.183 0.36 0.5324 0.702 0.867 1.0244 1.1774 1.329 1.479 1.5 1.56];

stress=[0 306 612 917 1223 1529 1835 2140 2446 2752 2767 2896];

Find the longitudinal modulus E using the regression model. sigma=E*epsilon

i must find only one E for all equations.how can i find the number provided for each value? can anyone suggest smthng? ty