Answer:
The given probability distribution is a discrete probability distribution.
Step-by-step explanation:
We are given the following in the question:
x: 3 4 7
P(X=x): 0.19 0.3 0.51
Property of discrete probability distribution:
[tex]\displaystyle\sum P(x_i) = 1[/tex]
If the given probability distribution satisfies this property then, it is a discrete probability distribution.
[tex]\displaystyle\sum P(x_i)\\\\= 0.19+0.3+0.51 \\= 1[/tex]
Thus, it satisfies the property for a discrete probability distribution.
Thus, the given probability distribution is a discrete probability distribution.