please answer questions #2-4 please and thanks

Question 2 (1 point) Saved Which of the following statements about IRR (Internal Rate of Return) is NOT TRUE Assumes that any positive cash flow generated by the investment earn the IRR rate calculated for the given cash flows. It is a metric that can be used to determine the relative profitability of investments based only on positive cash flows generated by an investment When the NPV = 0, for a series of discounted cash flows, the IRR will equal the discount factor used in the calculation of the NPV It is a metric that can be used to determine the relative profitability of investments based on both positive and negative cash flows generated by an investment Question 3 (1 point) Which statement(s) is(ure) TRUE about predicting economic trende Mark all that apply it is not possible to predict outcomes in the distant future with a high degree of certainty Models based on accepted economic theory are more defensible than those which are purely based on statistical correlation. Greater certainty is associated with predictions that are in the near future. Economic cycles are never a concern in modeling future outcomes. Question 4 (1 point) How does buying a bond at dincourt or premium impact yielda? Mark all that apply Buying a bond at a premium will decrease the yald over the holding period Buying a bond at a discount will increase the yield over the hoiding period Buying a bond at discount will decrease the yield over the holding period Buying a bond at a premium will increase the yield over the holding period buying a bond at a discount will have no impact on the yield over the holding period