A decision tree (Multiple Choice)

A decision tree
 a. presents all decision alternatives first and follows them with all states of nature.
  b. presents all states of nature first and follows them with all decision alternatives.
  c. alternates the decision alternatives and states of nature.
  d. arranges decision alternatives and states of nature in their natural chronological order.

Q. 2

A histogram is said to be symmetric if, when we draw a vertical line down the center of the histogram the two sides are nearly identical.
  Indicate whether the statement is true or false

Q. 3

The forecasting model that makes use of the least squares method is ______.
 a. weighted moving average
  b. exponential smoothing
  c. moving average
  d. regression

Q. 4

Making a good decision
 a. requires probabilities for all states of nature.
  b. requires a clear understanding of decision alternatives, states of nature, and payoffs.
  c. implies that a desirable outcome will occur.
  d. All of the alternatives are true.

Q. 5

When a distribution has more values to the left and tails off to the right, it is skewed negatively.
  Indicate whether the statement is true or false

Q. 6

The term exponential smoothing comes from ______.
 a. its emphasis on minimizing mean squared error
  b. the exponential nature of the weighting scheme used
  c. its use in fitting exponential trend lines
  d. the nonlinear noise it attempts to remove