I am preparing GRE Test which has Math Part.
How to solve probability questions in a real quick ?
One marble is randomly selected from a bag that contains only 4 black marbles, 3 red marbles, 5 yellow marbles, and 4 green marbles.
Quantity a) The probability of selecting either a black marble or a red marble Quantity b) The probability of selecting either a yellow marble or a green marble
Whether Quantity a will be greater ? Whether Quantity b will be greater ? Whether two Quantities are equal ? Relationship cannot be determined?