A Scatterplot of the Relationship Between Two Variables Is Graphed

question 56

Multiple Choice

A scatterplot of the relationship between two variables is graphed upward and sloping to the right.This is indicative of

• A) a strong positive relationship.
• B) a strong negative relationship.
• C) a weak inverse relationship.
• D) a purely Platonic relationship.

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Definitions:

Detonation

An uncontrolled, explosive ignition of fuel within an engine's cylinder after the spark plug has fired, often causing engine damage.

Circuit

In electricity, a path for electrons to flow from a source of higher electrical potential to a source of lower potential.

Timing Belt

A belt that synchronizes the rotation of the engine's crankshaft and camshaft, ensuring that the valves open and close at correct intervals.

Relative Compression Test

A quick way to identify a weak cylinder by cranking the engine with an inductive ammeter on the starter circuit. With a lab scope, cranking amperage can be graphed and correlated to a particular cylinder. A cylinder with low compression will draw fewer amps than a cylinder with higher compression, which will show on the graph.