Alicia is talking on her mobile phone to her friend Maya. If Maya is in a crowded train station, Alicia finds that she has to nearly shout for Maya to be able to hear her. However, when Maya is in a paddock on her grandparents' farm, she can easily tell what Alicia is watching on TV as they talk. This is one illustration of

Question

Quizplus · Accepted Answer

This is an illustration of signal-to-noise ratio, which refers to the amount of signal (in this case, Alicia's voice) relative to the amount of background noise (in this case, the crowded train station or quiet farm paddock). Maya can hear Alicia better in the quiet environment, where there is less noise interfering with the signal.

Alicia Is Talking on Her Mobile Phone to Her Friend