Solve the Problem. -The Monthly Incomes of Trainees at a Local Factory Are

question 219

Multiple Choice

Solve the problem.
-The monthly incomes of trainees at a local factory are normally distributed with a mean of $1600 and a standard deviation $150. What percentage of trainees earn less than $1390 a month?

• A)8.08%
• B)91.92%
• C)1.40%
• D)44.04%

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Definitions:

Molecule

The smallest unit of a chemical compound that can exist, consisting of two or more atoms bonded together.

Condensed Structure

A representation of a molecular structure that omits certain atoms or groups, assuming the reader will infer their presence to simplify depictions of organic compounds.

Structural Formula

A graphical representation of a molecular structure, showing how atoms are arranged and bonded together within a molecule.

Acetone

A volatile, colorless solvent known for its ability to dissolve many plastics and synthetic fibers, characterized by its simplest ketone structure.