On a Recent Biology Quiz, About 90 Percent of Students

question 122

Multiple Choice

On a recent biology quiz, about 90 percent of students earned excellent scores, but the other 10 percent did very poorly.The shape of the distribution of quiz scores is best described as:

• A)symmetric
• B)positively skewed
• C)negatively skewed
• D)steeply peaked
• E)bimodal

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Definitions:

Impaired Functioning

Describes a reduction in the ability to perform daily tasks and activities effectively, often due to physical or psychological conditions.

Pruning

The process of reducing the number of neurons, synapses, or connections in the brain, usually to increase the efficiency of neural networks.

Cell Death

In brain development, normal elimination of excess brain cells to achieve more efficient functioning.

Cortical Cells

Cells located in the cortex of various organs or tissues, particularly in the brain's cerebral cortex.