The Phrenic Nerve Exits from the Brachial Plexus

question 59

True/False

The phrenic nerve exits from the brachial plexus.

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Definitions:

Sampling Error

The difference between a sample statistic and the corresponding population parameter, arising due to the fact that the sample is not a perfect representation of the population.

Biased Estimator

An estimator that, on average, does not equal the true parameter of the population, indicating a systematic error in estimation.

Population Parameter

A numerical value summarizing a characteristic of an entire population, such as mean or variance.

Efficient Estimator

An estimator that achieves the lowest possible variance among all unbiased estimators for a parameter of interest.