Question

A firm buys 3 shipments of parts each month .The purchasing agent selects at random from among four in state suppliers .What is the probability that the orders are placed with
a. in-state suppliers only.
b. out of state suppliers only.
c. at least in state suppliers only.

Answer 1

The probability that the orders are placed with
a. in-state suppliers only is 1 because only in-state suppliers are used.
b. out of state suppliers only is 0 because only in-state suppliers are used.
c. at least in state suppliers only is also 1.