Independent events are events where the outcome of one event does not affect the outcome of another. For example, flipping a coin and rolling a die are independent events.

Dependent events are events where the outcome of one event affects the outcome of another. For example, drawing two cards from a deck without replacement is a dependent event.

To find the probability of two independent events A and B occurring together, multiply their individual probabilities: P(A and B) = P(A) * P(B).

To find the probability of two dependent events A and B occurring together, multiply the probability of the first event by the conditional probability of the second event: P(A and B) = P(A) * P(B|A).

The probability of drawing a red marble is P(Red) = Number of Red Marbles / Total Marbles = 6 / (6 + 5) = 6/11.

The probability is P(Red1) * P(Red2|Red1) = (6/15) * (5/14) = 30/210 = 1/7.

The probability of rolling an even number (2, 4, or 6) is P(Even) = 3/6 = 1/2.