Which of the following statements about shapes of histograms is ...

[mynx]

Which of the following statements about shapes of histograms is true?
 a. A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram, the two sides are identical in shape and size.
  b. A negatively skewed histogram is one with a long tail extending to the left.
  c. A positively skewed histogram is one with a long tail extending to the right.
  d. All of these choices are true.

Question 2

A nonparametric test would be used if _____.
 a. nominal data are available
  b. interval data are available
  c. it is known that the population is normally distributed
  d. None of the answers is correct.

[Madisongo23]

Answer to Question 1

D

Answer to Question 2

a