Multiple choice technology

What is the default length of numeric variable?

  1. 6

  2. 7

  3. 8

  4. None
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C Correct answer
Explanation

In SAS, the default length of a numeric variable is 8 bytes, which provides sufficient precision for most numeric calculations and can store values up to approximately 16 digits. This 8-byte length is stored as floating-point numbers following the IEEE 754 standard. SAS allows explicit length specification from 3 to 8 bytes for numeric variables, but 8 is the default to maintain accuracy. Options 6 and 7 are not SAS defaults for numeric variables.

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