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The Number of Power Outages at a Nuclear Power Plant

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Short Answer

The number of power outages at a nuclear power plant has a Poisson distribution with a mean of 6 outages per year.The probability that there will be exactly 3 power outages in a year is _____.


Definitions:

Error Variance

Random variability in a set of scores that is not the result of the independent variable. Statistically, the variability of each score from its group mean.

Between-Groups Variance

captures the differences in means across different groups in an experiment, reflecting how much group members vary from each other overall.

Within-Group Variance

The variation of observations within a single group or category, measuring how much individual scores differ from the mean of that group.

Statistical Significance

Refers to the likelihood that a result or relationship is caused by something other than mere random chance.

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