The Sample Variance and Standard Deviation Can Be Calculated Using $\sum { x }$

question 113

True/False

The sample variance and standard deviation can be calculated using only the sum of the data, $\sum { x }$ and the sample size, n.

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Definitions:

Tracheal Shift

The displacement of the trachea from its normal midline position, which can indicate underlying medical conditions such as a pneumothorax.

Neck Tumor

A growth or lump in the neck area that can be benign or malignant, requiring medical evaluation for diagnosis and treatment.

Unaffected Side

The side of the body or the part of an organ that remains normal or is not impacted by disease or injury.

Inguinal Lymph Nodes

These are a group of lymph nodes located in the inguinal (groin) area, which filter fluid and potentially harmful particles from the legs and groin area.