Author Question: All bell-shaped curves _________. a. are normal curves c. are symmetrical b. have means = 0 d. a ... (Read 144 times)

viki

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All bell-shaped curves _________.
 
  a. are normal curves c. are symmetrical
  b. have means = 0 d. a and c

Question 2

A distribution of raw scores is positively skewed. You want to transform it so that it is normally distributed. Your friend, who fancies herself a statistics whiz, advises you to transform the raw scores to z scores; that the z scores will be normally distributed. You should _________.
 
  a. ignore the advice because your friend flunked her last statistics test
  b. ignore the advice because z distributions have the same shape as the raw scores.
  c. take the advice because z distributions are always normally distributed
  d. take the advice because z distributions are usually normally distributed



frogdreck123456

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Answer to Question 1

C

Answer to Question 2

B



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