True or false. 1. The null set is a proper subset of every set. 2. Two sets are

Question

True or false.

1. The null set is a proper subset of every set.

2. Two sets are disjoint if their iintersection is the null set.

3. The number of elements in the union of two sets is always equal to the numbers of elements in the first set added to the number of elements in the second set.

4. If the probability of an event occuring is 1/2, then the probability of that event not occuring is 1/2.

5. Emperical probabilities are estimates based on relative frequency probability.

6. A proper subset of a set A is the set A itself.

7. The probability of having a coin flip produce a result of "heads" three times in a row is 1/6.

8. The probability of rolling two dice and getting a sum of 11 is 1/36.

9. Two sets are compliments of each other only when their union is the universal set.

Explanation / Answer

1. True

2. True

3. False

4. True

5. True

6. True

7. false

8. False

9. True

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