A local bank has determined that the daily balances of the checking accounts of its customers are normally distributed with an average of $280 and a standard deviation of $20.
a.What percentage of its customers has daily balances of more than $270?b.What percentage of its customers has daily balances less than $250?c.What percentage of its customers' balances is between $241 and $301.60?
What will be an ideal response?
?
| a. | 69.15% |
| b. | 6.68% |
| c. | 83.43% |
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What will be an ideal response?
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