Which of the following is the correct syntax for the Nz function?

Question

BlackTom AI · Accepted Answer

To determine the correct syntax for the Nz function, I’ll evaluate each option in turn and explain why it’s correct or incorrect.
Option 1: 'None of the choices listed are correct.' This would be true only if none of the other options matched the proper syntax. Since one option does match, this statement is not accurate.
Option 2: 'Nz(variant [, valueifnull])' This is the correct form. Nz takes two parameters: the expression (often called variant) and an optional valueifnull to return if the expression is Null. The brackets denote that the second argument is optional, which aligns with the canonical syntax Nz(expression, [valueifnull]).
Option 3: 'Nz()' This represents Nz with no arguments supplied. The function requires at least one argument (the expression to evaluate), so Nz() is invalid and would produce an error.
Option 4: 'Nz(valueifnull, variant)' Here the order of parameters is reversed compared to the defined syntax. The first parameter should be the expression, and the second (optional) is valueifnull; swapping them changes the meaning and makes the syntax incorrect.
In summary, the only option that faithfully mirrors the proper Nz syntax is 'Nz(variant [, valueifnull])', while the others violate the required argument rules, misorder the parameters, or omit necessary inputs. The reasoning above shows why each incorrect choice fails and why the correct choice fits the documented signature for Nz.

Which of the following is the correct syntax for the Nz function?

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