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A multinational company wants to know the cost of insuring its employees for a year. A recent study by the human resource director shows the
A multinational company wants to know the cost of insuring its employees for a year. A recent study by the human resource director shows the annual insurance expenses per employee per year followed the normal probability distribution, with a mean of Rp10,894,000and a standard deviation of Rp5 million per year.
What are the lower and upper values of X, symmetrically distributed around the mean, that includes 90% of annual insurance expenses?
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