Q.2. The following are measurements of the air velocity and evaporation coefficient of burning fuel droplets in an impulse engine: Air Velocity(x) 20 60 180 300 380 Evaporation capacity (y) 0.18 0.37 0.56 1.36 1.65 Fit a straight line to these data by the method of least squares, and use it to estimate the evaporation coefficient of a droplet when the air velocity is 190 cm/s