Answer:
flight stimulators are used to train astronaut and design simple air craft
The correct answer is: Summary
<span>If you only selected fields from a single table in the first screen, then when you click the “Next >” button to continue, you will only need to provide the query with a name and then click the “Finish” button to finish creating the query. If, however, you picked data fields from two or more related tables, then when you click the “Next >” button, you will instead view a second screen which asks if you would like a “Detail” or “Summary” query. You can select the option button for the type of query that you wish to create. If you select “Summary,” then you will be able to click the “Summary Options…” button to open the “Summary Options” dialog box. In this dialog box, you can select what type of summary to perform over a selected field. Make your selections, and then click the “OK” button to return to the “Simple Query Wizard.”</span>
Select summary to show only results of aggregate functions.
Select the aggregate function and the field name of the numeric field in the list box. You can enter as many aggregate functions as you want, one in each row of controls.
Aggregate function
Select the aggregate function.
Field name
Select the numeric field name.
+
Appends a new row of controls.
-
Removes the last row of controls.
