THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 132

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Let X be a continuous random variable with mean of 1200 and standard deviation of 250.Define the random variable Y as follows: Y = 80 + 0.05X
-What is the mean of Y?

• A)680
• B)330
• C)120
• D)140

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Definitions:

Crystal Form

The external shape displayed by a crystal or a mineral, determined by the internal arrangement of its atoms or molecules.

Cleavage

1. The tendency of minerals to break along specific orientations of closely spaced planes. 2. The tendency of a rock, especially a metamorphic rock, to split along mostly parallel planes.

Luster

The reflection of light from the surface of a mineral, especially its quality and intensity; the appearance of a mineral in reflected light.

Color

A property of light as seen by people, typically defined by its wavelength or frequency.