An Electrical Signal Is Delivered to a Transducer That Changes

question 36

Multiple Choice

An electrical signal is delivered to a transducer that changes the signal into a thump on a rock. As the wave travels through the rock, an electric sensor records the signal's travel time. What does this experiment help scientists to calculate?

• A) the force of a wave
• B) the magnitude of a wave
• C) the effect of a medium on wave travel
• D) the velocity of a wave

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Definitions:

Chi-Square Test

A statistical test used to determine the significance of an observed association between two categorical variables.

Logistic Regression

A statistical model that is used for predicting the probability of a binary outcome based on one or more predictor variables.

P-Value

A measure in statistics that helps to determine the significance of results from a hypothesis test, indicating whether the observed data are improbable under the null hypothesis.

Explanatory Variable

A variable in a statistical model that is believed to cause or influence the response variable.