A TV manufacturer knows that their TV's have a normally distributed lifespan, with a mean of 12.7 years, and standard deviation of 1.8 years. If a TV is picked at random, 10% of the time its life will be less than how many years?
Added by Eric A.
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The mean (\(\mu\)) is 12.7 years, and the standard deviation (\(\sigma\)) is 1.8 years. Show more…
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