The figure represents the position of a particle as it travels along the x-axis. Between t = 2 s and t = 4 s, what is (a) the average speed of the particle and (b) the average velocity of the particle? 
Definitions:
External Attributions
The process of ascribing the cause of one’s own or others’ behavior to external factors or circumstances.
Self-serving Bias
A cognitive bias where individuals attribute their successes to internal factors and failures to external factors.
In-group/out-group Bias
Describes the tendency to favor members of one's own group (the in-group) over those from different groups (the out-group), often leading to prejudice and discrimination.
Fundamental Attribution Error
The tendency to overemphasize personality-based explanations for behaviors observed in others while underestimating the influence of situational factors.
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