SOLUTION: Determine if each of the distributions given below represent a probability distribution.
A.
x
1
2
3
4
P (x)
1/12
5/12
1/3
1/12
B.
x
3
6
8
P(x)
2/10
.5
1/
Question 228660: Determine if each of the distributions given below represent a probability distribution.
A.
x
1
2
3
4
P (x)
1/12
5/12
1/3
1/12
B.
x
3
6
8
P(x)
2/10
.5
1/5
C.
x
20
30
40
50
P(x)
0.4
-
0.2
0.5
0.3 Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website! Determine if each of the distributions given below represent a probability distribution.
A.
x
1
2
3
4
P (x)
1/12
5/12
1/3 = 4/12
1/12
----------
No because the probabilities add up to 11/12 and need to add up to 12/12
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B.
x
3
6
8
P(x)
2/10
.5 = 5/10
1/5 = 2/10
No because the probs add up to 9/10
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C.
x
20
30
40
50
P(x)
0.4
0.2
0.5
0.3
No because the probs add up to more than 1.
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Cheers,
Stan H.