Small Electrodes Are Pasted onto Miranda's Scalp and Are Connected

question 7

Multiple Choice

Small electrodes are pasted onto Miranda's scalp and are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper.From this description,it is evident that Miranda's brain is being studied through the use of

• A)a computerized tomography (CT)scan.
• B)functional magnetic resonance imaging (fMRI).
• C)diffusion tensor imaging (DTI).
• D)an electroencephalogram (EEG).

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Definitions:

Normally Distributed

Describes a statistical distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Standard Deviation

A measure of the amount of variance or dispersion of a set of values, indicating how much the values in a dataset deviate from the mean.

Margin of Error

A statistic expressing the amount of random sampling error in a survey's results.

Sample Mean

The average value of a set of observations derived from a sample.