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On average, indoor cats live to 15 years old with a standard deviation of 2.7 years....

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Basic Math

On average, indoor cats live to 15 years old with a standarddeviation of 2.7 years. Suppose that the distribution is normal.Let X = the age at death of a randomly selected indoor cat. Roundanswers to 4 decimal places where possible.

a. What is the distribution of X? X ~ N(__,___)

b. Find the probability that an indoor cat dies when it is between10.3 and 11.5 years old. ___

c. The middle 30% of indoor cats' age of death lies between whattwo numbers?
     Low: ____ years
     High: ____ years

Fill in the "___"

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