A variable’s unknown value is commonly called ____.

To __________ data means to ensure that the data are in the proper range.

A(n) ___ is a named memory location whose value can vary.

A(n) ____ is a repeating flow of logic with no end.

When you write programs, you work with data in three different forms: ____.

If a is true and b is false, then ______________.

A variable’s unknown value is commonly called ____.