An electrical firm manufactures light bulbs that have a length of life that is normally distributed with mean equal to 817 hours and a standard deviation of 45 hours. Find the probability that a bulb burns between 723 and 852 hours. A 0.7823 B) 0.0183 C) 0.2177 D) 0.764

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A: Given that , mean = μ = 50 standard deviation = σ = 8 x = 46    

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Q: What type of sampling technique does this represent

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Q: For a population with mean of 50 and standard deviation of 8, what is the raw score that corresponds...

A: Given,mean(μ)=50standard deviation(σ)=8

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