A Plant Manager Knows That the Number of Boxes of Supplies

question 136

Multiple Choice

A plant manager knows that the number of boxes of supplies received weekly is normally distributed with a mean of 200 and a standard deviation of 20.What percentage of the time will the number of boxes received weekly be greater than 210 or Less than 180?

• A).6915
• B).4672
• C).1915
• D).1587

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Definitions:

Carbonyl Stretching Frequency

The specific frequency at which the carbonyl group (C=O) vibrates in an infrared spectrum, used to identify the presence of carbonyl-containing compounds.

Compounds

Chemical substances formed by the combination of two or more elements in fixed ratios, possessing unique chemical and physical properties.

Ketones

Organic compounds featuring a carbonyl group (C=O) bonded to two other carbon atoms, important in biochemistry and industry.

IR Stretching Frequencies

The specific frequencies at which molecular bonds absorb infrared radiation, causing the bonds to stretch, useful in identifying functional groups in molecules.