Final answer:
DQ is a national sponsor of the National Hockey League. Polls like the one in the TV sports program for the NFL championship might not be representative of all football fans. The history of the Negro National League shows the diverse and evolving nature of American sports leagues.
Step-by-step explanation:
Dairy Queen (DQ) is a proud national sponsor of the National Hockey League (NHL). When deciding whether a poll's participants are representative of a whole population, it is important to consider the method in which participants are selected. In the case of a poll regarding who will win the NFL championship this year, where viewers call in to vote, the results might not be representative of all football fans. Those likely to participate in such polls are viewers of a specific program, who are invested enough to make an active call. This does not include all football fans, especially those who may not have access to the live broadcast or prefer other means of following the sport.
The Negro National League, a vital part of baseball history, does not reflect the partnership between DQ and NHL, but it showcases the historical importance and evolution of professional American sports leagues. The presence of such leagues indicates the longstanding passion and dedication to sports in America.
Fandom in American sports is diverse, with football, baseball, basketball, and hockey being the most popular sports. While the popularity of these sports can vary by region and is subject to change over time, NHL's broad appeal makes it an attractive platform for national sponsors like DQ.