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Jefferson's Apportionment Method

Jefferson method

Jefferson's method

INSTRUCTIONS

  • Editing the table
    State populations can be edited by clicking on the bold numbers under the population column (clicking right of center increases the number; clicking left of center decreases the number), or, for faster editing, by dragging the mouse across the number. You can edit the “Number of states” using the up/down arrows. You can edit the “Number of seats” using the up/down arrows or by directly entering the number in the box and then using the Enter key in your keyboard. You can modify the divisor by using the up/down arrows or by directly entering a divisor in the “Divisor” box and using the Enter key.

  • Interpreting the results
    The “Standard Q” column shows the standard quotas for each state; the “Lower Q” column shows the lower quotas; the “Modified Q” column shows the modified quotas; and the “Downward Q” column shows the modified lower quotas. If the total in the “Downward Q” column matches the total in the “Standard Q” column we have the correct apportionment under Jefferson’s method, given by the numbers in the “Downward Q” column.



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