You're considering an investment portfolio that offers a combination of the following options: a risk-free asset with an expected return of 2.60% and a risky asset with an expected return of 6.30% and standard deviation of 3.25%. Assuming asset returns are on the vertical axis and standard deviations are on the horizontal axis, what is the slope of the budget line that expresses alternate combinations of mean return and standard deviation with portfolios of these assets? (Round to two decimals, if necessary.)