What is the probability of not getting a black ball

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A light bulb at an art museum has an expected life at 300 hours and a standard deviation of 12 hours. Using chebychev's inequality to estimate the prob. that one of these light bulbs last between 280 and 320 hours of use.

The odds of choosing one black ball from an urn are 7 to 13. What is the probability of not getting a black ball?

If you were running race, and you passed the person in 2nd place, what place would you be in a now?

Reference no: EM132170713

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