Whenever a statistical population can be described, at least ...

[bobthebuilder]

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.

[perkiness]

Answer to Question 1

B

Answer to Question 2

B

[bobthebuilder]

Thank you!

[perkiness]

Always glad to help...