Final answer:
A quorum typically requires a majority of members present to conduct business. For a chapter meeting, this usually means 50% + 1 vote of the total number of eligible votes is required to establish a quorum.
Step-by-step explanation:
To establish a quorum in a chamber such as in Congress or other organizations, a majority of members must be present. This does not necessarily mean that a full majority must vote, but they must be present and able to vote. In the context of the House and Senate, each requires a majority of its membership to be present to conduct business. Applying this to a chapter meeting, the standard for a quorum would align with that of larger legislative bodies, which suggests that a 50% + 1 vote forms a quorum, unless stated otherwise in the organization's bylaws.