Probability problems
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I need help solving probability problems, especially with the question below.
The life expectancy of a laptop is normally distributed with a mean of 48 months and a standard deviation of 6 months.
What is the probability that a randomly selected laptop will be in working condition after 5 years?
What percentage of laptops will last less than 48 months?
If the manufacturer guarantees the laptops for 3 years and will replace if malfunction, what percentage of laptops will need to be replaced?
95% of the laptops will have a life expectancy of at least how many months?
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Solution Summary
This solution gives the step by step method for computing probabilities based on Z score.
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Probability
I need help solving probability problems, especially with the question below.
The life expectancy of a laptop is normally distributed with a mean of 48 months and a standard deviation of 6 months.
Let X be the life expectancy of a laptop. Given that X is normal ...
Purchase this Solution
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