if(f1 < 127.5){
  if(f7 < 28.5){
    if(f5 < 45.4){
      return 0.167528f;
    } else {
      return 0.05f;
    }
  }
}

if condition1 and condition2 and condition3 then outcome.

1/(1+np.exp(-1*0.167528))=0.5417843204057448