Question

vA bag contains 1 blue, 2 green, 3 yellow, and 3 red marbles, as shown.


1 blue marble, 2 green marbles, 3 yellow marbles, and 3 red marbles.
Which best describes the complement of choosing a red marble?
choosing a green or blue marble
choosing any marble
choosing a blue, green, or yellow marble
choosing a yellow marble

Answer 1

Complement of "red" is "not red" — i.e., choosing a blue, green, or yellow marble. (There are 1+2+3 = 6 non-red marbles out of 9.)