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Lisa Is a Project Manager for a Large Consulting Firm

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Lisa is a project manager for a large consulting firm. She supervises multiple project teams over a single year. Often, the teams work at distant locations, so Lisa rarely meets with every one on each project team. Nevertheless, Lisa's company requires her to conduct performance appraisals on each team member. Lisa is concerned that her performance appraisals will not hold up in court if one of her subordinates later sues for discrimination. Which of the following statements explains why Lisa is correct to be concerned?


Definitions:

Probability Distribution

A statistical function that describes all the possible values and likelihoods that a random variable can take within a given range.

Expected Value

The long-run average value of repetitions of the experiment it represents, computed as the weighted average of all possible values.

Poisson Random Variable

Represents the number of events occurring in a fixed interval of time or space, assuming that these events happen with a known constant mean rate and independently of the time since the last event.

Random Variable

A variable whose possible values are numerical outcomes of a random phenomenon, used in probability and statistics to model randomness.

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