A student who took Stat 2 last semester learns that their overall course score was at the 85th percentile. Assuming that a histogram of all the Stat 2 course scores from last semester follows the normal curve, this means that this student had a score that was how many SDs above the average score? Choose the answer that is closest. Group of answer choices 1.15 1.05 1.10 1.0

Q: Suppose a variable is Normally distributed with μ=345 and \sigma σ=30. What proportion of the data…

A: Mean(µ) = 345Standard deviations (σ) = 30X ~ N (µ, σ )= N(345, 30)

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A: Here as PER POLICY I HAVE CALCULATED 3 PARTS ONLY

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A: a) Consider that μ is the population mean score.

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A:

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Q: The lengths of time (in years) it took a random sample of 32 former smokers to quit smoking…

A: Solution

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Q: P87 = °C

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