Question: Northern Credit Union is trying to evaluate the client based based on the daily balances in the checking accounts if its customers. Preliminary analysis reveals

Northern Credit Union is trying to evaluate the client based based on the daily balances in the checking accounts if its customers. Preliminary analysis reveals that the checking accounts of its customers may be normally distributed. The average balance is $280 and a standard deviation of $20. What percentage of its customers has daily balances of less than $250? % What percentage of its customers have daily balance of more than $300? %
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