If the Mean of a Normal Distribution Is Negative

question 85

Multiple Choice

If the mean of a normal distribution is negative,

• A)the standard deviation must also be negative
• B)the variance must also be negative
• C)a mistake has been made in the computations, because the mean of a normal distribution cannot be negative
• D)None of these alternatives is correct.

---

Definitions:

Dowels

Cylindrical rods, typically made of wood, metal, or plastic, used to reinforce joints or support shelves and other components in furniture.

Cylinders

Three-dimensional geometric shapes with straight parallel sides and a circular or oval cross-section.

Drill Bits

Tools made of hard material, often high-speed steel or carbide, used to create cylindrical holes.

Chamfering

The process of creating a beveled edge at the intersection of two surfaces to remove sharp edges for safety, aesthetics, or part assembly.