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An education finance corporation claims that the average credit card debts carried by undergraduates
are normally distributed, with a mean of $3173 and a standard deviation of $1020. (1) What is the probability that a randomly selected undergraduate, who is a credit card holder,
has a credit card balance less than $2663? (2) What is the probability that a randomly selected undergraduate, who is a credit card holder,
has a credit card balance between $2153 and $3683? (3) You randomly select 25 undergraduate who are credit card holders. How many students are
expected that their mean credit card balance is less than $2663?
Complex assessment task? We know exactly what markers reward.
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