1 Create a scatter plot for the Animals Starter File, using "pounds"
as the xs and "weeks"
as the ys.

Form: Does the point cloud appear linear or nonlinear?

Direction: If it’s linear, does it appear to go up or down as you move from left to right?

Strength: Is the point cloud tightly packed, or loosely dispersed?

Would you predict that the rvalue is positive or negative?

Will it be closer to zero, closer to ±1, or in between?

What rvalue, does CODAP compute when you type
rvalue(animalstable, "pounds", "weeks")
? 
Does this match your predictions?
2 Create a scatter plot for the Animals Dataset, using "age"
as the xs and "weeks"
as the ys.

Form: Does the point cloud appear linear or nonlinear?

Direction: If it’s linear, does it appear to go up or down as you move from left to right?

Strength: Is the point cloud tightly packed, or loosely dispersed?

Would you predict that the rvalue is positive or negative?

Will it be closer to zero, closer to ±1, or in between?

What rvalue does CODAP compute?

Does this match your prediction?
3 Is this correlation stronger or weaker than the correlation for "pounds"
?
4 What does that mean?
These materials were developed partly through support of the National Science Foundation, (awards 1042210, 1535276, 1648684, 1738598, 2031479, and 1501927). Bootstrap by the Bootstrap Community is licensed under a Creative Commons 4.0 Unported License. This license does not grant permission to run training or professional development. Offering training or professional development with materials substantially derived from Bootstrap must be approved in writing by a Bootstrap Director. Permissions beyond the scope of this license, such as to run training, may be available by contacting contact@BootstrapWorld.org.