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5. Binomial Distribution & Discrete Random Variables
5. Binomial Distribution & Discrete Random Variables / Discrete Random Variables / Problem 6
Problem 6

A customer service agent successfully resolves a caller’s issue on the first attempt 72%72\% of the time. Find the probability that:
i. The first successful resolution occurs on the third call,
ii. The first successful resolution occurs on or before the second call, and
iii. The agent does not successfully resolve any of the first three calls.