Question

A balanced die is rolled twice. Then, the probability of the sum of numbers received in these two trials being even is​

Answer 1

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Answer 2

Answer:

There are three even numbers on each die (2, 4, & 6). You have a 50-50 chance of rolling one of these numbers on a single die. This can also be written as 1/2. The chance of getting on even number on two dice is therefore 1/2 x 1/2… which is 1/4, or 25%.