FIN343 Bank estimates that building a new branch office in the newly developed New Heaven township will yield an annual expected return of 10 percent with an estimated standard deviation of 6 percent. The bank's marketing department estimates that cash flows from the proposed New Heaven branch will be strongly positively correlated (with a correlation coefficient of + 0.70) with the bank's other sources of cash flow. The expected annual return from the bank's existing facilities and other assets is 8 percent with a standard deviation of 5 percent. The branch will represent just 15 percent of Lifetime's total assets. Will the proposed branch increase FIN343's overall rate of return? Its overall risk?