manishcmu wrote:
I reasoned the above from first two sentences- Southington University's fund-raisers succeeded in getting donations from 80 percent of the potential donors they contacted this year. This rate would be the expected rate if the only potential donors contacted were those who have donated in the past
I thought that 80% could be reached only if all donors they contacted were donors previously. for example - if they contacted 100 donors then 80 donors could have contributed only if all 100 had
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