I want to know the answer to the following question:
What is part of the reason for the varying estimates of the bisexual population?
All the background I'm provided with is that "Some studies only consider a person bisexual if they are nearly equally attracted to both sexes, and others consider a person bisexual if they are at all attracted to the same sex (for otherwise mostly heterosexual persons) or to the opposite sex (for otherwise mostly homosexual persons).". Is that enough to answer the question?