Why is the variance preferred over the range or ...

[hubes95]

Why is the variance preferred over the range or semi-interquartile range?
 
  a. The variance is always smaller than range measures.
  b. The variance has better mathematical properties.
  c. The range measures don't account for extreme scores properly.
  d. The range measures are more accurate than reliable.

Question 2

Why is the median a better indicator of central tendency for skewed data sets than the mean or mode?
 
  a. The mean over-corrects for variation.
  b. The mode will look too large.
  c. The median will not be as affected by the skewing.
  d. The mean will always be larger than the median.

[TheDev123]

Answer to Question 1

b

Answer to Question 2

c

[hubes95]

Thank you

[TheDev123]

No problem