Hi, I went through the process this year for McK. I didn't make any mistakes in the second round so I can't comment on the margin of error personally.
However, I know one of my friends made 3 math errors this year (he found and corrected two of them himself), one in each of his final round interviews. He recovered well and ended up with the offer.
I also spoke with another person in my incoming analyst class at McK who said he got a specialized profit formula wrong and screwed up the math answer, but the partner gave him some hints and he figured it out. And guess what - he's in my class. I would've thought that was a huge error, but it worked out for him. I also know some people who claim they made no mistakes in the final round who didn't get the offer.
From my observations, I think the final round interview is just vetting you against the rest. If you're a boring person - doesn't matter if you ace all the technicals and tick the boxes for PEI. They'll probably not want you. If you won the international science fair and organized a political movement, then I'm sure you can make all the mistakes in the world and they'll still beg you to join their firm. You don't have to do either of those things, but being a likable person with great intrapersonal spikes can go a long way.
My final tip to you is just to think there is zero room for error. Why not push yourself to achieve the best you can do? I did that and I aced my final rounds. Don't drop your standards now.
Message me if you want to ask any follow-up questions. Cheers!
Hi, I went through the process this year for McK. I didn't make any mistakes in the second round so I can't comment on the margin of error personally.
However, I know one of my friends made 3 math errors this year (he found and corrected two of them himself), one in each of his final round interviews. He recovered well and ended up with the offer.
I also spoke with another person in my incoming analyst class at McK who said he got a specialized profit formula wrong and screwed up the math answer, but the partner gave him some hints and he figured it out. And guess what - he's in my class. I would've thought that was a huge error, but it worked out for him. I also know some people who claim they made no mistakes in the final round who didn't get the offer.
From my observations, I think the final round interview is just vetting you against the rest. If you're a boring person - doesn't matter if you ace all the technicals and tick the boxes for PEI. They'll probably not want you. If you won the international science fair and organized a political movement, then I'm sure you can make all the mistakes in the world and they'll still beg you to join their firm. You don't have to do either of those things, but being a likable person with great intrapersonal spikes can go a long way.
My final tip to you is just to think there is zero room for error. Why not push yourself to achieve the best you can do? I did that and I aced my final rounds. Don't drop your standards now.
Message me if you want to ask any follow-up questions. Cheers!