Two companies a and b drill wells in a rural area company a, Ask an Expert

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Two companies, a and b, drill wells in a rural area. Company A charges a flat fee of $3500 to drill a well regardless of its depth. Company B charges $1000 plus $12 per foot to drill a well. the depths of wells drilled in this area have a normal distribution with a mean of 250 feet and a standard deviation of 40 feet. what is the probability that company b would charge more than company a to drill a well?

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