Chebychev's Theorem: Old Faithful Geyser at Yellowstone

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SUMMARY

Chebychev's Theorem is applied to analyze the eruption durations of Old Faithful Geyser, with a sample size of n = 32, a mean duration of 3.32 minutes, and a standard deviation of 1.09 minutes. The theorem states that for any k standard deviations from the mean, at least (1 - 1/k²) of the data falls within that range. To determine how many eruptions lasted between 1.14 minutes and 5.5 minutes, k is calculated as approximately 2, leading to at least 75% of eruptions, or 24 eruptions, falling within this interval.

PREREQUISITES
  • Understanding of Chebychev's Theorem
  • Basic statistics concepts: mean and standard deviation
  • Ability to calculate standard deviations from a mean
  • Familiarity with sample size implications in statistical analysis
NEXT STEPS
  • Study the applications of Chebychev's Theorem in various statistical contexts
  • Learn how to calculate confidence intervals using standard deviations
  • Explore the differences between Chebychev's Theorem and the Empirical Rule
  • Investigate the significance of sample size in statistical inference
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Students in statistics, educators teaching probability theory, and researchers analyzing data distributions using Chebychev's Theorem.

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Homework Statement



Chebychev's Theorem: Old Faithful is a famous geyser at Yellowstone National
Park. From a sample with n = 32, the mean duration of Old Faithful's eruptions is
3.32 minutes and the standard deviation is 1.09 minutes. Using the Chebychev's
Theorem, determine at least how many of the eruptions lasted between 1.14
minutes and 5.5 minutes.

The Book gives 24 as an answer...but I can't figure out how to come up with that.
 
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How many standard deviations is the data set bound that they want you to account for?
 

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