Two Cars Collide at a Red Light

question 64

Multiple Choice

Two cars collide at a red light.An eyewitness to the incident is later asked by a police officer how fast the vehicles were traveling when they "smashed" into each other.You'd expect that the eyewitness's memory would ______.

• A)be biased to say that no accident occurred at all
• B)remember the event with complete accuracy
• C)be biased to say the cares were traveling faster than they actually were
• D)be biased to say the cars were traveling faster than they actually were

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Definitions:

Deseasonalized Time Series

A time series from which seasonal effects have been removed to analyze the underlying trend without seasonal variability.

Moving Averages

Moving averages are statistical measures used to analyze data points by creating a series of averages of different subsets of the full data set.

Mean Absolute Deviation

The average of the absolute differences of each data point from the data set's mean.

Smoothing Constant

A coefficient used in exponential smoothing to weight the relevance of historical data.