Final answer:
The question is about the characteristics of three random variables: x, y, and z, and requires determining which statements are true for these variables.
Step-by-step explanation:
The subject of this question is Probability. The question asks about the characteristics of three random variables: x, y, and z, and requires us to determine which statements are true for these variables.
a) They are always prime numbers: This statement may or may not be true, as the values of the variables are not specified. It depends on the specific values of x, y, and z.
b) They are consecutive integers: This statement may or may not be true, as the values of the variables are not specified. It depends on the specific values of x, y, and z.
c) They are necessarily odd numbers: This statement may or may not be true, as the values of the variables are not specified. It depends on the specific values of x, y, and z.
d) They are randomly selected integers: This statement is true, as the question mentions that the integers are selected randomly.