When used to perform arithmetic operations, the plus and minus signs are infix operators. SAS also provides several other operators that are used only with certain SAS statements. The WHERE statement ...

B. Comparison operators Comparison operators are used to determine equality of two data values between members of the same type. These comparison operators are supported for all built-in types.

Thirty-nine seventh-grade students completed an arithmetic test designed to uncover errors involving misunderstandings of (a) operations with whole numbers, (b) grouping symbols, and (c) rules of ...