For questions 12 to 15: You roll three fair dice -- one with seven sides (number

Question

For questions 12 to 15: You roll three fair dice -- one with seven sides (numbered 1 to 7), one with eight sides (numbered 1 to 8), and one with nine sides (numbered 1 to 9). X = number of dice showing odd numbers facing up.

Question 12 (0.25 points) There are a fixed number of trials,

n. Question 12 options:

True    False

Question 13 (0.25 points)

Each trial can be categorized as being either a success or a failure (two outcomes), and X counts the number of successes.

Question 13 options:

True                           False

Question 14 (0.25 points)

The probability of success p stays the same from trial to trial. Question 14 options:

True                            False

Question 15 (0.25 points)

Trials are independent of each other (that is, success or failure on one trial doesn't affect the probability of success or failure on any other trial).

Question 15 options:

Explanation / Answer

12. Here n is 3 which is constant. True

13. There are more than 2 outcomes. False

14. p is different for different trials. False

15. Yes trials are independent as each trail is not depending on others. True

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