Classify each of the following random variables as discrete or continuous:
a. x = the number of girls born to a couple who will have three children.
b. x = the number of defects found on an automobile at final inspection.
c. x = the weight (in ounces) of the sandwich meat placed on a submarine sandwich.
d. x = the number of incorrect lab procedures conducted at a hospital during a particular week.
e. x = the number of customers served during a given day at a drive-through window.
f. x = the time needed by a clerk to complete a task.
g. x = the temperature of a pizza oven at a particular time.