Thread: examples of variable x of a population

I'm reading about Sampling Distribution of a Sample Mean and don't understand what this variable x could be. Maybe some examples of what the variable x could be will help me understand.

The book states:
"Suppose that a variable of a population has mean and standard deviation ."

Then it goes on to list some properties that do make sense to me.

Thank you. :-)

X can be pretty much anything in this context, some examples:



x = a person's weight in kg
x = a person's IQ
x = The number of lottery tickets bought this month