AP BIOLOGY

Detailed explanation-1: -When you flip a coin, there are two possible outcomes: heads and tails. Each outcome has a fixed probability, the same from trial to trial. In the case of coins, heads and tails each have the same probability of 1/2.

Detailed explanation-2: -The probability of getting heads is half. It is already known that the probability is half/half or 50% as the event is an equally likely event and is complementary so the possibility of getting heads or tails is 50%.

Detailed explanation-3: -Let’s take a simple example. A fair coin is tossed two times. The probability that a head comes up on the second toss is 1/2 regardless of whether or not a head came up on the first toss. The two events are (1) first toss is a head and (2) second toss is a head.

Detailed explanation-4: -Therefore, P(getting 1 head and 1 tail) = P(E9) = n(E9)/n(S)= 2/4 = 1/2. The solved examples involving probability of tossing two coins will help us to practice different questions provided in the sheets for flipping 2 coins.

Detailed explanation-5: -Then the probability of an event is the number of outcomes in the event divided by the number of possible, equally likely outcomes. For example, the probability of rolling an even number on a 6-sided die is 3/6 = 1/2.