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Home Q & A Board Science-Related Homework Help Mathematics
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NERD NERD
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6 years ago
The township of Middleton sets the speed limit on its roads by conducting a traffic study and determining the speed (to the nearest 5 miles per hour) at which 80 of the drivers travel at or below. A study was done on Brown's Dock Road that indicated drivers' speeds follow a normal distribution with a mean of 36.25 miles per hour and a variance of 6.25.
 a. What should the speed limit be?
  b. What percent of the drivers travel below that speed?
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vbassvbass
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6 years ago
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NERD Author
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6 years ago
Thank you, thank you, thank you!
Mcb
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Yesterday
Smart ... Thanks!
spaghetti
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2 hours ago
This helped my grade so much Perfect
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