Answer:
Positive Economics is the branch that deals with analysis of relationship among variable for establishment of cause and effects.
Normative Economics is the branch that deals with value judgement, what ought to be and not.
Statement Classification
1. Economic development should not Normative Economics
take place at the expense of social justice.
2. The government can increase labor Positive Economics
productivity by improving public education.
3. Society faces a short-run trade-off Positive Economics
between inflation and unemployment.
4. The Federal Reserve should take Normative Economics
action to lower the inflation rate.
5. The government must take action Normative Economics
to reduce the unemployment rate.