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A person making calls to sell insurance has a 0.15 probability of success.If that person makes 15 calls in a day, what is the probability

A person making calls to sell insurance has a 0.15 probability of success.If that person makes 15 calls in a day, what is the probability they will have at least 4 successful calls? Assume binomial variable.

a.0.4701

b.0.2428

c.0.1773

d.0.1821

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