Question: Based on historical data, a bank estimates the probability that a customer will default on a loan is 0.15. Supposed 10 customers get a loan

Based on historical data, a bank estimates the probability that a customer will default on a loan is 0.15. Supposed 10 customers get a loan from the bank and that customers default independently of each other.

a: What is the probability that at least 2 customers will default?

b: What is the probability that at least 4 customers will default?

c: What is the expected value and standard deviation of the number of customers who will default on their loan?

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