Q2: A biologist assumes that there is a linear relationship between the amount of fertilizer supplied to apple plant and subsequent yeild of apple obtained. Eight apple plants of same variety were selected at random and traeted, weekly, with a solution in which x grams of fertilizers was dissolved in fixed quantity of water. The yeilld Y kelograms D 2.5 plant A C E G H 1.5 2.0 5.8 1.0 3.0 3.5 4.0 4.5 Y 3.9 4.4 6.6 7.0 7.1 7.3 7.7 (a) Estimate the yeild of plant treated weekly with grams of fertizizers.