In November 2004, a newspaper article announced, "Caesarean Deliveries Hit U.S. Record" and stated that "roughly 1.13 million, or 27.6% [of births], were caesarean deliveries" in the United States in 2003.21
a. Approximately how many births were there altogether in the United States that year?
b. If the proportion 0.276 refers to the entire proportion of births, should it be written as p or?