A Frequency Distribution Has a Mean of 100 and a Standard

question 55

Multiple Choice

A frequency distribution has a mean of 100 and a standard deviation of 20. The class limits for one class are 50 up to 60. What are the standard normal z-statistics for the class limits?

• A)−20 and 20
• B)−2.5 and −2.0
• C)2.0 and 2.5
• D)−50 and −40

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Definitions:

Infarction

Infiltration of foreign particles; material in a vessel causing coagulation and interference with circulation.

Stasis

A period or state of inactivity or equilibrium.

Stasis

A condition in which there is no movement or developmental progress, often referring to blood flow, bodily fluids, or growth.

Infarction

The obstruction of the blood supply to an organ or region of tissue, causing local death of the tissue.