Question

Which association best describes the data in the table?

x y
3 2
3 3
4 4
5 5
5 6
6 7
8 8

A. no association

B. negative association

C. positive association

Answer 1

C. positive association

Explanation:

Positive and negative association describe a relation between variables about a scatter plot.

A positive association happens when one variable increases while the other one also increases.

A negative association happens when one variable decreases while the other variable increases.

It's important to know that the variable that always increases is the independent variable, it increases no matter what.

In this case, we could say that we have a positive association, because while x increases, y also increases.

You could notice that there's some repetitive number. That's normal because a scatter plot doesn't describe a perfect linear relation at the beginning, actually, it's a bit messy, however, from such data we construct a linear relationship which is called "linear regression".

Therefore, the right answer is C.

Answer 2

'x' and 'y' have a positive association between them.

Explanation:

We can see in the given data that as 'x' remains constant or increases by 1 unit, or two units in it's two consecutive values, in each of the cases 'y' increases by 1 unit.

Hence, 'x' and 'y' have a positive association between them.