00:01
Hello, welcome to this lesson.
00:03
In this lesson, we'll predict the number of sit -ups a person can do after they have watched eight hours of tv a day.
00:13
So, the relationship between them is the number of sit -ups a person can do, which is y, is equals to ax plus b, where x is the number of hours of television watched per day.
00:32
The first thing that we'll do is that we'll construct the regression equation using the values of a and b given to us.
00:42
So, here we have y equals to negative 1 .213 times the number of television watched, plus 24 .09.
00:56
So, we'll look for the value of y, the value of the sit -ups, when x is equals to 8.
01:16
So, we'll substitute the value of x equals to 8 into this equation, and that will give us the number of sit -ups a person who have watched.
01:26
So, here we have 8, right, plus 24 .09...