Random Variable Table 5-7 lists probabilities for the corrsponding numbers of girls in three births. What is the random variable, what are its possible values, and are its values numerical?

Table 5-7 Number of Girls in Three Births

Solution 1BSC

From the given table, x = number of girls in three births is a random variable because its numerical values depend on chance. With three births, the number of girls can be (possible values) . 0, 1, 2, or 3. The variable x is a numerical random variable.