Answer the following

1a. In a decision making problem, the decision maker ________________ .

		has no control on which decision alternative will be used, and has not control on which state of nature will occur
		has no control on which decision alternative will be used, but determines which state of nature will occur
		determines which decision alternative will be used, but has no control on which state of nature will occur
		determines which decision alternative will be used, and also determines which state of nature will occur

b. ______refers to a type of decision making in which probabilities for states of nature are not known.

		Decision making under risk
		Decision making under uncertainty

c. When using equally likely approach, we need to calculate the __________ of the possible payoffs of each alternative.

		plain average
		average regret
		expected value
		Hurwicz value

d. By MaxiMin approach for decision making, we need first figure out the ___________ of possible payoffs of each alternative; then figure out the ____________ of them.

		maximum, minimum
		minimum, maximum
		maximum, maximum
		minimum, minimum