If Z Is a Standard Normal Random Variable, the Area

question 35

Multiple Choice

If z is a standard normal random variable, the area between z = 0.0 and z = 1.20 is 0.3849, while the area between z = 0.0 and z = 1.40 is 0.4192. What is the area between z = -1.20 and z = 1.40?

• A) 0.0808
• B) 0.1151
• C) 0.0343
• D) 0.8041
• E) 0.1646

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Definitions:

Specific Gravity

A measure of the density of a substance compared to the density of water at a specified temperature.

Urinometer

A device used to measure the specific gravity of urine, an indicator of hydration and kidney function.

Glucose

A simple sugar that is an important energy source in living organisms and is a component of many carbohydrates.

Urethra

A tube that connects the urinary bladder to the urinary meatus for the removal of fluids from the body.