AP BIOLOGY

Detailed explanation-1: -The probability of rolling an even number is three out of six, or three-sixths. This fraction can be simplified as the numerator and denominator are both divisible by three.

Detailed explanation-2: -The chance is 50%. It doesn’t matter how many rolls and the probability of 50% is not changed even if you know the result of previous rolls. This is because on each roll, there is a 50% chance of an even roll and a 50% chance of an odd roll.

Detailed explanation-3: -The probability of getting a sum of 5 on rolling two dice is 1/11.

Detailed explanation-4: -The even numbers in a dice are 2, 4 and 6. The odd numbers in a dice are 1, 3 and 5.

Detailed explanation-5: -If so, since each die has six numbers there are a total of 36 numbers on six dies. There are six 1s and six 6s on the six dies. The probability of rolling a 1 or a 5 is 12/36 or 1/3.