[Solution Library] Determine whether each of the distributions given below represents a probability distribution. Justify your answer. (A) x 1 2 3 4 P (x) 1/4
Question:
Determine whether each of the distributions given below represents a probability distribution. Justify your answer.
(A)
| x | 1 | 2 | 3 | 4 |
| P ( x ) | 1/4 | 1/12 | 1/3 | 1/6 |
(B)
| x | 3 | 6 | 8 |
| P ( x ) | 0.2 | 2/5 | 0.3 |
(C)
| x | 20 | 30 | 40 | 50 |
| P ( x ) | 3/10 | -0.1 | 0.5 | 0.3 |
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