Mathematics, 29.01.2020 19:55, angie2118

Me!

a ge light bulb is supposed to last for 1,200 hours. in fact, light bulbs of this type last only 1,185 hours with a standard deviation of 70 hours. what is the probability that a randomly selected light bulb will have an average life of at least 1,200 hours?

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Me! a ge light bulb is supposed to last for 1,200 hours. in fact, light bulbs of this type last only 1,185 hours with a standard deviation of 70 hours. what is the probability that a randomly selected light bulb will have an average life of at least 1,200 hours?

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Me!

a ge light bulb is supposed to last for 1,200 hours. in fact, light bulbs of this type last only 1,185 hours with a standard deviation of 70 hours. what is the probability that a randomly selected light bulb will have an average life of at least 1,200 hours?