\f12.5 10.0 Porosity (*) 7.5 5.0 2.5 10 30 50 70 90 Acoustic Impedance (kg/m2s*10*3] b) Calculate the conditional probability for porosity given acoustic impedance of 70 kg/m's*10' (2 marks). P (Porosity| Al = 70) 2.5 5.0 7.5 10.0 12.5 Porosity (76) c) Your subsurface team has determined the following thresholds and defined the associated events A and B as (2 marks): Event A: Porosity 2 7.5% Event B: Acoustic Impedance