Question: 1. A die is rolled twice. What is the probability that the two numbers are different? 2. A die is rolled three times. What is

1. A die is rolled twice. What is the probability that the two numbers are different?
2. A die is rolled three times. What is the probability of obtaining three different numbers?
3. A die is rolled four times. What is the probability of obtaining only even numbers?
4. A die is rolled three times. What is the probability that the number 1 does not appear?

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