A function that is bowl-shaped up is called a(n) _________ ...

[sam.t96]

A function that is bowl-shaped up is called a(n) _________ function.
 a. concave
  b. optimal
  c. convex
  d. elliptical

Question 2

The degree of correlation among independent variables in a regression model is called
 a. multicollinearity. b. interaction.
  c. the coefficient of determination. d. the sum of squared errors (SSE).

[leeeep]

Answer to Question 1

c
RATIONALE: A function that is bowl-shaped up is called a convex function.

Answer to Question 2

a
RATIONALE: Multicollinearity is the degree of correlation among independent variables in a regression model.

[sam.t96]

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