Cold calls Justine works for an organization committedto raising money for Alzheimer’s research. From pastexperience, the organization knows that about 20% of allpotential donors will agree to give something if contactedby phone. They also know that of all people donating,about 5% will give $100 or more. On average, how manypotential donors will she have to contact until she getsher first $100 donor?

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