Bar and pie charts are graphical techniques for nominal data. The ...

[Themember4]

Bar and pie charts are graphical techniques for nominal data. The former focus the attention on the frequency of the occurrences of each category, and the later emphasizes the proportion of occurrences of each category.
  Indicate whether the statement is true or false

Question 2

All the variables in a multiple regression analysis _____.
 a. must be quantitative
  b. must be either quantitative or qualitative but not a mix of both
  c. must be positive
  d. None of the answers is correct.

[wergv]

Answer to Question 1

T

Answer to Question 2

d