SOLUTION: If light bulbs have lives tat are normally distributed with a mean f 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less tan 2500 hour

Question 735341: If light bulbs have lives tat are normally distributed with a mean f 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less tan 2500 hours?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
If light bulbs have lives tat are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less tan 2500 hours?
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Since 2500 is the mean, 50% of the bulbs will have a life of less than 2500.
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Cheers,
Stan H.
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