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## Statistics

Shaver Manufacturing, Inc., provides dental insurance to its employees. A recent study by human resource director shows the annual cost per employee each year followed the normal probability distribution, with the mean of \$1,280 and a standard deviation of \$420 per year.

1. What fraction of employees cost more than \$1,500 per year for the dental expenses?

2. What fraction of employees cost between \$1,500 and \$2,000 per year?

3. Determine the percent that didn't have any dental expense.

4. What was the cost for 10% of employees who incurred highest dental expense?

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M918114

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