The frequency distribution of a normally distributed set of ...

[SGallaher96]

The frequency distribution of a normally distributed set of scores can be described completely by the and .
 
  a. mean, standard deviation
  b. mean, median
  c. median, variance
  d. median, standard deviation

Question 2

A recent survey based on a random sample of n = 470 voters, predicted that the Independent candidate for the mayoral election will get 24 of the vote, but he actually gets 27. Can it be concluded that the survey was done incorrectly?
 
  What will be an ideal response?

[babybsemail]

Answer to Question 1

A

Answer to Question 2

No, because of sampling variability, sample proportions will naturally vary from the true population proportion, even if sampling is done with a perfectly valid procedure.

[SGallaher96]

Thanks for the timely response, appreciate it

[mohan]

Gracias!