The OLS estimator is derived by: Group of answer choices connecting the Yi corresponding to the lowest Xi observation with the Yi corresponding to the highest Xi making sure that the standard error of the regression equals the standard error of the slope estimator. minimizing the sum of absolute residuals. minimizing the sum of squared residuals.

water molecules will move from the side of higher water concentration to the side of lower concentration until both solutions are isotonic. at this point, equilibrium is reached. in an isotonic solution, the flow of water in and out of the cell is happening at the same rate.

hope this < 3

1. credits

2. dual - aspect

hope i : )

70.30

step-by-step explanation:

c.

step-by-step explanation: