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Please help with these. Please explain steps! Thank you! 5. The daily mileage of delivery trucks follows a Normal Distribution with a mean of 120

Please help with these. Please explain steps! Thank you!

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5. The daily mileage of delivery trucks follows a Normal Distribution with a mean of 120 and a standard deviation of 18. Find the probability that a randomly selected delivery truck has a daily mileage between 150 and 156. 6. The lifetimes of light bulbs are normally distributed with a mean of 500 hours and a standard deviation of 25 hours. How long would a lightbulb need to last to be in the top 1% of lifetimes

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