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Mathematics, 08.11.2019 02:31 shyann78

According to moebs services inc., an individual checking account at u. s. community banks costs these banks between $175 and $200 per year. suppose that the average annual cost of all such checking accounts at u. s. community banks is $190 with a standard deviation of $20. find the probability that the average annual cost of a random sample of 100 such checking accounts at u. s. community banks is

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