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The company Toyota, SA, offers its employees dental care insurance. A recent study carried out by the director of human resources shows that the annual

The company Toyota, SA, offers its employees dental care insurance. A recent study carried out by the director of human resources shows that the annual cost per employee had a normal probability distribution, with a mean of Q1,350 and a standard deviation of Q380 per year. What percentage of employees generated more than Q1,500 annually in dental expenses?

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