yes.
create a new query
choose your table
select the 3 fields everyone, sex, and category
click the Sigma icon to get the Total row
in the Total row set the everyone field to Count
in the Total row set the Sex and Category fields to Where
enter 2 in the sex criteria and 1 in the category criteria
the SQL looks like this:
SELECT Count(TableName.Everyone) AS CountOfEveryone
FROM TableName
WHERE (((TableName.Sex)=2) AND ((TableName.Category)=1));
hope this helps you.