Question 368382: For the table that follows, answer the following questions:
x y
1 1/3
2 2/3
3 1
4
Determine whether each of the distributions given below represents a probability distribution. Justify your answer.
(A)
x
1
2
3
4
P(x)
0.01
7/12
1/12
1/4
(B)
x
3
6
8
P(x)
0.24
3/5
0.135
(C)
x
20
30
40
50
P(x)
0.33
0.02
-0.04
0.69
- Would the correlation between x and y in the table above be positive or negative?
- Find the missing value of y in the table.
- How would the values of this table be interpreted in terms of linear regression?
- If a “line of best fit” is placed among these points plotted on a coordinate system, would the slope of this line be positive or negative?
Answer by Fombitz(32388)   (Show Source):
You can put this solution on YOUR website! A) No, the sum of probabilities is not equal to 1.
B) No, the sum of probabilities is not equal to 1.
C) No, all probability values must be non-zero.
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