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# True or False Questions & Probability

1. True or false, and explain:

(a) If something has probability 1,000%, it is sure to happen.
(b) If something has probability 90%, it can be expected to happen about nine times as often as its opposite.

2. The chance of A is 1/3; the chance of B is 1/10. True or false, and explain:

(a) If A and B are independent, they must also be mutually exclusive.
(b) If A and B are mutually exclusive, they cannot be independent.

3. Three cards are dealt from a well-shuffled deck.

(a) Find the chance that all of the cards are diamonds.
(b) Find the chance that none of the cards are diamonds.
(c) Find the chance that the cards are not all diamonds.

4. A die will be rolled 6 times. What is the chance of obtaining exactly 1 ace?

5. A die will be rolled 10 times. The chance it never lands six can be found by one of the following calculations. Which one, and why?

6. True or false: if a coin is tossed 100 times, it is not likely that the number of heads will be exactly 50, but it is likely that the percentage of heads will be exactly 50%. Explain

#### Solution Summary

The solution provides answers to true or false questions with explanations. The solution also provides step by step method for the calculation of probabilities and conditional probabilities. Formula for the calculation is also included.

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