Percent of undergraduate students carry credit card

Reference no: EM13104494

Nine percent of undergraduate students carry credit card balances greater than $7,000. Suppose 10 undergraduate students are selected randomly to be interviewed about credit card usage.

a) What is the probability that two of the students will have a balance greater than $7,000?

b) What is the probability that none will have a balance greater than $7,000?

c) What is the probability that at least three will have a balance greater than $7,000?

Reference no: EM13104494

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