A six-face fair dice is rolled a large number of times. The mean value of the outcomes is ________
Correct Answer
3.5-3.5
Solution & Step-by-step Explanation
Concept:
Mean =
Calculation:
Mean =
= 1.(1/6) + 2.(1/6) + 3.(1/6) + 4.(1/6) + 5.(1/6) + 6.(1/6)
= 3.5
Mean =
Calculation:
| Value on the die (x) | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| Probability P(X) | 1/6 | 1/6 | 1/6 | 1/6 | 1/6 | 1/6 |
= 1.(1/6) + 2.(1/6) + 3.(1/6) + 4.(1/6) + 5.(1/6) + 6.(1/6)
= 3.5