[Presenter] Hello, students.
Today, in this short video,
we will learn how to use a z-table.
The z-table is from the back of our book,
and this is the one that we will use for our class.
Z-values have three numbers,
and two of them come from the column,
and the third one comes from the row.
So let's work with a simple z-value,
and we will start with 1.00.
So first we will go down the column until we reach 1.0,
and then we will go across,
and, this time, the first entry
is the number we are looking for.
So it's going to be 0.8413.
Now, let's look at another z-value,
a more commonly used one,
and that would be 1.96.
So again, we are going to go down this column
until we reach 1.9,
and then we are going to go across,
and, basically, the intersection provides us
the number we are looking for,
and that number here is 0.9750.
I have highlighted both of these numbers
with the yellow for your convenience.
I hope this short video was helpful,
and if you have any questions,
please let know because I'm here to help.