Exhibit 7-2 A Random Sample of 10 Examination Papers in a Course

question 46

Multiple Choice

Exhibit 7-2
A random sample of 10 examination papers in a course, which was given on a pass or fail basis, showed the following scores.
-Refer to Exhibit 7-2. The point estimate for the variance of the population is

• A)419.43
• B)20.48
• C)75
• D)750

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Definitions:

DTI

Diffusion Tensor Imaging, a type of MRI technique that maps the diffusion of water molecules in tissue, particularly useful for visualizing white matter tracts in the brain.

Orbitofrontal Cortex

A region of the frontal lobes of the brain involved in decision-making, reward processing, and the modulation of emotions.

Disgusting Odors

Odoriferous stimuli that evoke a strong negative emotional reaction of disgust, often associated with decay or lack of hygiene.