A Transformer Is a Device That Normally

question 8

Multiple Choice

A transformer is a device that normally

• A)operates on either dc or ac.
• B)operates only on ac.
• C)operates only on dc.

---

Definitions:

Population Parameter

A characteristic or measure that describes an aspect of an entire population, such as its mean, variance, or proportion.

Sample Statistic

A numerical measure that describes an attribute of a sample of a population.

Sample Variance

A measure of the dispersion or spread of a set of data points in a sample, quantifying how much the data deviate from the mean.

Population Variance

A measure of the spread between numbers in a dataset, representing the average of the squared differences from the Population Mean.