Truth matters. Community matters. Your support makes both possible. LAist is one of the few places where news remains independent and free from political and corporate influence. Stand up for truth and for LAist. Make your year-end tax-deductible gift now.
Checking the Math of '21'
Listen
0:00
The No. 1 movie at the box office for the last two weekends has been 21, which depicts a group of Massachusetts Institute of Technology students who decide to try to relieve some tuition pressures by hitting the tables in Las Vegas. "Math guy" Keith Devlin talks about the card-counting system used in the movie.
Copyright 2023 NPR. To see more, visit https://www.npr.org.