Final answer:
A vote of 15--0 in an organization is referred to as a unanimous decision, indicating that all members voted in favor and there was total agreement.
Step-by-step explanation:
When a vote is taken by the members of an organization and the outcome is 15--0, this vote is referred to as a unanimous decision. In voting terminology, a unanimous vote means that every member has agreed and cast the same vote. Majority rule usually requires more than 50 percent of the votes to be in favor of a proposal, whereas a supermajority may require a higher percentage, such as 60 percent, two-thirds, or even three-quarters to pass a measure. On the other hand, in a unanimous vote, 100 percent of the members have agreed, indicating total consensus.
Nonviolent, democratic processes use different voting rules to reach decisions, and the unanimous rule is the most conclusive among them, as it reflects that all participants support the decision made. Whether discussing small family decisions or significant legislative measures, the concept of unanimity demonstrates the highest level of agreement within a group. In this case, the organizational vote was unanimous as every member voted in favor of the decision being proposed.