Yes, Maryland will beat South Dakota State in the NCAA playoffs because Maryland passes the ball better than South Dakota state. Maryland seems to get their feet set before they shoot, and that's important in the long run. South Dakota has gotten lucky a few times, but that's not enough to sustain wins against tough teams in the playoffs.
Maryland has strong defense and experience that the small conference Jackrabbits are missing. The Big 10 conference is much more diverse and talented leaving Maryland well prepared. Looking at tournament history, Maryland has performed extremely well in the NCAA tournament. South Dakota State does not have the required depth to keep up.
Barring the upset, Maryland is set to beat SDSU. Maryland is a great team, and has beat many other great teams this season. They are certainly slated to make it to the Sweet Sixteen, and will probably be beaten out by Kansas. This is March Madness, though. Anything can happen, and there are always wild upsets.
Yes, I think Maryland will beat South Dakota in the NCAA playoffs on March 18th because Maryland is a higher ranked team and also has some of the top players in the country. Melo Trimble and Diamond Stone are legitimate NBA prospects, so i think that Maryland will come out on top because they have better players and have played a tougher schedule.