At the Receiving End of a Phone Call,an Analog Signal

question 102

Multiple Choice

At the receiving end of a phone call,an analog signal must be converted back into a(n) ________ signal.

• A)auditory
• B)digital
• C)analog
• D)direct

---

Definitions:

Seasonal Variations

Refers to fluctuations in data or activities that occur regularly based on seasonal changes throughout the year.

Trend Component

A component of time series data that represents the consistent, long-term direction of the data over time.

Regression Analysis

A set of statistical processes for estimating the relationships among variables, often used to predict the value of a dependent variable based on one or more independent variables.

Exponential Smoothing

A time series forecasting method for univariate data that applies diminishing weights to past observations, often used for short-term forecasts.