Define a "majors" table and relate it to your current table. Each major becomes a different related record In this table. For data-entry purposes, you can set up a portal with at least two rows for this.
For your summary report, you base your report on this new related table and place fields from your student table in a sub-summary part. The following tutorial shows how to do this with a sales invoice. If you put your Majors table in place of line items and your student table in place of Invoices, the same technique will apply.
Thanks Phil. I really appreciate your help. I will work on this.