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Author Question: Whenever a statistical population can be described, at least roughly, by the perfectly symmetrical, ... (Read 126 times)

bobthebuilder

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on: Jul 24, 2018
Whenever a statistical population can be described, at least roughly, by the perfectly symmetrical, bell-shaped normal curve, we can estimate the percentages of all population values that lie within specified numbers of standard deviations from the mean with the help of:
 a. Tchebysheff's Theorem
  b. the empirical rule
  c. the interquartile range
  d. box plot
  e. none of these

Question 2

A political analyst in Michigan surveys a random sample of registered Democrats and compares the results with those obtained from a random sample of registered Republicans. This would be an example of:
 a. dependent samples.
  b. independent samples.
  c. independent samples only if the sample sizes are equal.
  d. dependent samples only if the sample sizes are equal.


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perkiness

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

B


bobthebuilder

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Reply #2 on: Jul 24, 2018
Thank you!


perkiness

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Reply #3 on: Jul 24, 2018
Always glad to help...


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