Exhibit 6-7 The Weight of Items Produced by a Machine Is Normally

question 172

Multiple Choice

Exhibit 6-7
The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.
-Refer to Exhibit 6-7. What percentage of items will weigh between 6.4 and 8.9 ounces?

• A)0.1145
• B)0.2881
• C)0.1736
• D)0.4617

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Definitions:

Long Crystals

Mineralogical structures characterized by their elongated shape, often formed under certain conditions of temperature and pressure.

Dark-Colored

Describes substances or materials that reflect very little light, making them appear black or close to black in color.

Stretched Pebbles

Elongated pebbles that have been deformed and stretched by tectonic forces in a metamorphic environment.

Anticline

An anticline is a type of fold that is arch-shaped and has its oldest beds at its core, typically resulting from compressional forces in the Earth's crust.