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13. A car mechanic finds out that the amount spent by customers has normal distribution with mean $200 and standard deviation $30. What is the

13. A car mechanic finds out that the amount spent by customers has normal distribution with mean $200 and standard deviation $30. What is the probability that the next customer will spend between $110 and $290? (i) 68.3% (j) 95.4% (k) 99.7% (l) 100%

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