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OpenStudy (anonymous):
A car is designed to last an average of 12 years with a standard deviation of 0.8 years. What is the probability that a car will last less than 10 years?
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OpenStudy (anonymous):
Hint: 10 years is 2.5 standard deviations from the mean.
OpenStudy (anonymous):
But I have no idea what to do. I'm sorry. I'm absolutely terrible when it comes to math! :(
OpenStudy (anonymous):
Are you familiar with the normal curve?
OpenStudy (anonymous):
No
OpenStudy (anonymous):
What's that?
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