There is a deck of 30 cards where 20 are red and 10 are black. A card is randomly drawn, its colour is noted, and the card is placed back in the deck. The procedure is repeated 8 times. Let X be the number of observed red cards. The variance of X lies in the interval: O (0.0, 0.5) O (0.5, 1.0) O (1.0, 1.5) O (1.5, 2.0) O (2.0, 2.5) O (2.5, 3.0) O (3.0, 3.5) O (3.5, 4.0) O (4.0, 4.5) O (4.5, 5.0) O (5.0, 5.5) O (5.5, 6.0 ) O (6.0, 6.5) O (6.5, 7.0) None of the above