If you were to graph precision (H) and sample size (n), which of ...

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If you were to graph precision (H) and sample size (n), which of the following generalizations would be most accurate?
 a. Precision is very low with small sample sizes of 50 or below.
  b. Precision constantly increases as sample size increases; a sample of 2,000 is four times more precise than a sample of 500.
  c. Precision increases rapidly when sample size increases up to about 500 and then begins to level off.
  d. Precision and sample size have nothing to do with each other, therefore graphing them make no sense
  e. Both b and c are true.

Question 2

Consider that we have nominal data (responses are categorical) and the responses are Yes or No to the question: The next time you order pizza, will you use Domino's? Which of the following sets of responses shows the MOST variability (all else being equal)?
 a. 90 say Yes and 10 say No
  b. 80 say Yes and 20 say No
  c. 70 say Yes and 30 say No
  d. 60 say Yes and 40 say No
  e. 50 say Yes and 50 say No

[mochi09]

Answer to Question 1

C

Answer to Question 2

E

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Gracias!

[matt95]

TYSM