A(n) __________ is a graphical representation in which the sample ...

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A(n) __________ is a graphical representation in which the sample space is represented by a rectangle and events are represented as circles.
 a. frequency polygon
  b. histogram
  c. Venn diagram
  d. tree diagram

Question 2

In a regression analysis, the error term  is a random variable with a mean or expected value of
 a. zero
  b. one
  c. any positive value
  d. any value

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Answer to Question 1

c

Answer to Question 2

A

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Excellent

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Gracias!