AP BIOLOGY

HEREDITY

BASICS OF PROBABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A standard dice is rolled. What is the probability that a 2, 4, OR 6 will be rolled
A
0.5
B
1
C
1.5
D
0
Explanation: 

Detailed explanation-1: -Since, events A and B are independent, Probability of rolling an even number followed by a four i.e. P(C) = P(A) * P(B) = 1/2*1/6 = 1/12 = 0.083. Hence, there is approximately 0.83*100 or 8.3% chance of rolling an even number (2 or 4 or 6) followed by a four with a six sided die.

Detailed explanation-2: -A standard die has six sides printed with little dots numbering 1, 2, 3, 4, 5, and 6. If the die is fair (and we will assume that all of them are), then each of these outcomes is equally likely. Since there are six possible outcomes, the probability of obtaining any side of the die is 1/6.

Detailed explanation-3: -The probability of both outcomes is equal i.e. 50% or 1/2. So, the probability of an event is Favorable outcomes/Total number of outcomes.

Detailed explanation-4: -The probability of getting 1 on die is P(1) = 1/6. Similarly, the probability of getting 2, 3, 4, 5, and 6 is also 1/6.

There is 1 question to complete.