Mathematics, 22.04.2020 00:03 alyo31500
A light bulb company advertises that a 75-watt light bulb has an average life of 500 hours with a standard
deviation of 30 hours.
2. What percent of lightbulbs have an average life of less than 425 hours?
z-Score:
Probability:
Answers: 1
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A light bulb company advertises that a 75-watt light bulb has an average life of 500 hours with a st...
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