IBM SPSS Statistics system variables can be:
Which interpretation is correct for the Independent Samples T-Test table shown below?

If you build an expression manually, as opposed to using a function (e.g., specify (V1+V2)/2 instead of MEAN (V1 , V2)), which statement is true?
For a variable salary we have the statistics as shown in the figure below.

The reported Mean is incorrect because a value, -9999, is included in its calculation. How can this situation be fixed?
Consider two variables, my_income and my_spouses_income, in the dataset below. You created a third variable, total_income using the Compute Variable dialog and the following expression: total_income = my_income + my_spouses_income. True or false: the value for the 3rd case will be a system-missing value.

What does the Paste button in this dialog box do?
