________ Characters Are Used as Placeholders for Unknown Parts of Values

question 90

Short Answer

________ characters are used as placeholders for unknown parts of values or to match certain patterns in a value.

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Definitions:

Sample Size

The number of observations or replicates included in a statistical sample.

T Distribution

A probability distribution that is used in hypothesis testing for small sample sizes, when the population standard deviation is unknown.

Normal Distribution

A probability distribution that is symmetric around the mean, showing that data near the mean are more frequent in occurrence than data far from the mean.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a certain level of confidence.