Which event has a probability of 1/2? Select all that apply. A. rolling a number greater than 6 on a six-sided number cube.
B. Picking a black marble out of a bag of black marbles
C. A flipped coin landing on tails
D. A flipped coin landing on heads or tails
E. Picking a blue marble from a bag of 6 red marbles and 6 blue marbles
F. Rolling an odd number on a six-sided number cube