Jim  figures that it takes an average of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to an early morning class.  One day it took rod 21 minutes to get to class. How many standard deviations from the average is that? Is the z value positive or negative?  What communing time corresponds to a standard deviation score of z =-2.5? Could Rod count on making it to class in this amount of time or less?

Q: middle 99.7% of car costs are between what values

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A:

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A: From the provided information, Sample size (n) = 10 Sample mean (x̅) = 6.9 Sample standard deviation…

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Q: how did you find the standard deviation to be 1.2. explain clearly?

A: Here we have to explain the how we get standard deviation is 1.2

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A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

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A: The SAT scores, mean, and standard deviation are:The ACT scores, mean, and standard deviation are:

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A: given data, μ=54.5σ=3.1Omar scores exactly 0.75 standard deviations above the mean z=0.75raw score…

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A: Given Data: Let X be the marks in Mathematics Let Y be the marks in Science   X~ Normal ( 87, 92) Y~…

Q: A medical lab tested a sample of 8 vials of blood for acidity on the pH scale.  Use this data to…

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Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the…

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A: From the provided information, Pierce got a score of 71.5 with mean (µ) = 62.5 and standard…

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Q: SAT scores have a mean of 1026 and a standard deviation of 209. ACT scores have a mean of 20.8 and a…

A:

Q: Americans (on average) individually eat 16 pounds of seafood each year with a standard deviation of…

A: Given that   x̄ = 14 , μ = 16 , ? = 7 , n = 4