NARRBEGIN: Number of Horses

question 99

Essay

NARRBEGIN: Number of Horses
Number of Horses
The random variable X represents the number of horses per family in a rural area in Iowa, with the probability distribution: p(x) = 0.05x, x = 2, 3, 4, 5, or 6.NARREND
-Determine which of the following are not valid probability distributions, and explain why not.
a.x
0
1
2
3
p(x)
0.15
0.25
0.35
0.45
b.x
2
3
4
5
p(x)
-0.10
0.40
0.50
0.25
c.x
-2
-1
0
1
2
p(x)
0.10
0.20
0.40
0.20
0.10

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