Scatter Plots - Unit Practice

Negative

no association

positive

positive

negative

none

all of the above

linear

positive linear association

negative linear association

no association

nonlinear association

graph 1

graph 2

graph 3

graph 4

Line A, as all of the data is below the line.

Line B, as it goes through two points and it increases with the data.

Line C, as it goes through three points and approximately half of the data is above the line and half of the data is below the line.

Line D, as all of the data is above the line and it increases as the data increases.

Strong Negative

As the cost of a TV goes the number of TV's sold goes down.

Weak Negative

Weak Positive

Interpretation of the graph is: As the cost of a TV goes down the number of TV's sold goes up.

As the years decrease, the number of newspapers go down.

The more time that passes, the number of newspapers sold goes down.

Every year you sell 10 less newspapers.

As time passes, we sell more newspapers.

The higher the elevation, the lower the highest point is.

As elevation decreases, the highest point increases.

As elevation increases, the highest point increases.

There is no relationship among elevation and high points.