10. After estimating a probit model for the likelihood of a website visitor clicking through conditional on if the visit occurred on a weekday or not, you get the following results:ClickThrough_i= -1.2(0.4) + 0.8(0.2)WeekDay_i, where standard errors are reported in parenthesis. What would be the calculation that yields the marginal effect of a visit moving from a weekend to a weekday on click-throughs?

-1.2 + 0.8 = -0.4

0.8

(-1.2 + 0.8) - (-1.2)

(-1.2)