When Are Two Variables Said to Covary

question 3

Multiple Choice

When are two variables said to covary?

• A)when the two variables have different values under different circumstances
• B)when the two variables have different variations under different circumstances
• C)when variations in the value of one variable are synchronized with variations in the value of the other
• D)when the pattern of variation of the two variables is highly dissimilar

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Definitions:

Neural Impulse

An electrical signal that travels along a neuron's axon, transmitting information throughout the nervous system.

Milliseconds

A unit of time equal to one thousandth of a second, often used to measure very short durations, especially in scientific contexts.

Absolute Refractory Period

A phase during which a neuron is incapable of firing again immediately after an action potential, ensuring the signal only moves in one direction.

Action Potentials

Quick, electrical impulses that travel down a neuron's axon, allowing neurons to communicate with each other.