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Find out whether each of distributions given below represents a probability distribution. Justify your answer.
A)
x
1
2
3
4
P(x)
0.25
5/12
1/3
1/6
B)
6
8
0.1
3/5
0.3
C)
20
30
40
50
0.2
-0.2
0.7
Statistics and Probability, Statistics
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