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The average speed on a certain highway is μ = 58 with a standard deviation of σ = 10. What portion of cars are traveling between 55 and 65 mph?
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The average speed on a certain highway is μ = 58 with a standard deviation of σ = 10. What portion of cars are traveling between 55 and 65 mph?

User PeterB
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The portion of cars traveling between 55and 65 mpg could be 59 card
User Garvae
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