Respuesta :
The image shows a continuous signal and is not made of numbers, so this signal is an analog signal. Gina is not correct in her identification of the signal.
To answer the question we must know about Digital and Analog Signals.
What is an Analog signal?
A continuous signal represents one time-varying quantity with another time-based variable is known as an Analog signal. Such as physical values and natural phenomena.
for example, earthquake, frequency, volcano, speed of wind, weight, lighting, etc.
What is Digital Signal?
A signal that is used to represent data as a sequence of separate values at any point in time is known as a digital signal. the digital signal represents a real number within a constant range of values.
Difference between Digital and Analog Signal
Analog signal uses a continuous range of values that helps us to represent information while digital signal uses discrete 0 and 1 to represent information.
Gina is not correct, she is not using digital signals to share the information.
Explanation
Looking at the question carefully, the type of information shared by Gina is words (when she reads to her friends) and images that she shared with her friends later on. Therefore, neither of the information she shared is discrete(0 and 1) to represent information.
Hence, we can say that Gina is not correct, she is not using digital signals to share the information.
Learn more about Digital and Analog Signal:
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