Question

the following table lists ages and number of players per age group that are on a baseball team. Let A= baseball players who are 8 years old, how many players are in the complement of A?

Answer 1

Since we want the complement of A, we can write it like:

`A^C=\text{ baseball players who are NOT 8 years old}`

then, we have to add the number of players who are 7, 9 and 10 years old. Therefore, there are 3+5+3=11 players in the complement of A