If X Is a Normal Random Variable with a Mean

question 3

Multiple Choice

If x is a normal random variable with a mean of 1228 and a standard deviation of 120, how many standard deviations are there from 1228 to 1380?

• A) 11.50
• B) 10.233
• C) 3.1989
• D) 1.267

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Definitions:

Cardiac Output

The quantity of blood circulated by the heart through the vascular system every sixty seconds.

Blood Pressure

The pressure of circulating blood on the walls of blood vessels, often measured as systolic over diastolic and a vital sign of cardiovascular health.

Stethoscope

A medical instrument used to listen to the sounds generated inside the body, especially those from the heart and lungs.

Stroke Volume

The amount of blood ejected from the left ventricle of the heart with each contraction.