Community Spring Cleaning week is here! Join your fellow Maveryx in digging through your old posts and marking comments on them as solved.
Learn more here!
The challenge questions were pretty straight forward, the bonus however, was not able to get the right answer got a different day month combination where the frequency of lifts was 15.
I agree with @TonyA, @kmcdaniel and others who think the methodology suggested in the hint actually gave you an incorrect answer. Averaged over all the years, 15:00 on Saturdays in September is the hour where you're most likely to see the bridge lift. (with a possible slight adjustment for the number of Saturdays in September over the years as compared to the frequency of other days)