Calculating predicted probabilities for ordered probit model

Trying to figure out how to obtain the values in the table below. For instance, for y=1, I did: 0.75-(-0.50)-15(0.052), and got 0.47. What am I missing? Please help!! Going nuts over this.

The formula is $$P(y=1|x)=\Phi(\tau_1-\alpha-\beta x_i)$$. Here $$\Phi$$ denotes the CDF of standard normal RV. It doesn't have an explicit integral, so we use so called Z-Tables for it. Once there, you'll see that the value corresponding to $$0.47$$ is $$0.6808$$ (row = $$0.4$$, column = $$0.07$$), which is $$0.68$$ when you take two significant digits.