1. A homeowner stays in a single location for an average of 20 years with a standard deviation of 5.7 years. What are the chances ( as a percentage - without using the % symbol) that someone lives in their home for 40 years or more?
Hint: When these problems ask for the chances of something happening, it is referring to the percentage for your answer (the probability). Make sure to use the percentage form without a % symbol for each answer!
1. A homeowner stays in a single location for an average of 20 years with a standard deviation of 5.7 years. What are the chances ( as a percentage - without using the % symbol) that someone lives in their home for 40 years or more?
2. Employees at Executive Management Co. spend an average of 80 minutes on the phone each day. If the standard deviation is 8 minutes, what percentage of people spend less than 1 hour on the phone?
3. The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances that a chef is earning more than $20 an hour? (Express your answer as a percentage)
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