Final Exam Review

If the correlation coefficient for a set of data is -0.8, what kind of correlation is present?

• strong negative

• weak negative

• weak positive

• strong positive

True or False: If two variables are strongly correlated, it means that a change in one variable directly causes the other to change as well (causation).

• True

• False

Distance from the equator is indicated with

• latitude

• longitude

Longitude lines are parallel on a sphere.

• True

• False

Answer explanation

Longitude meridians get closer together as they near the poles, therefore they are not parallel when viewed on a sphere. However, when we try to place geographical information from a 3D sphere onto a flat surface for a map, these meridians are often straightened out, giving the incorrect impression that they are parallel.

Longleaf is located at 35 degrees N, 78 degrees W. Which of these is its longitude?

• 35 degrees N

• 78 degrees W

• both

• neither

What kind of map is this?

• cartogram

• topographic

• choropleth

• dot density

What kind of map is this?

• cartogram

• topographic

• choropleth

• dot density

What kind of map is this?

• cartogram

• topographic

• choropleth

• dot density

Answer explanation

The key feature to look for when trying to identify a cartogram is the DISTORTION of true area.

What kind of map is this?

• cartogram

• topographic

• choropleth

• dot density

Answer explanation

Sometimes the dots on a dot density map are very small!

When did the Big Bang occur?

• 38 billion years ago

• 13.8 billion years ago

• 138 million years ago

• 138 trillion years ago