2.375 + 1.600781 × ((0.975441 × ((3−2.1666666) / 1.4433756) + 0.343164 × (((3.5−2.5) / 1.0801234)) + 0.1104315 × ((4.5−4.3333333) / 0.7637626)))/(∣0.975441∣+∣0.343164∣+∣0.1104315∣))