How did Russia and China deal with the problem of scarcity in the past? Why would a transition to capitalism aid them in solving this problem?

A(n) ___ can sell some of its output at various prices, although it sells less output at higher prices.

Find the probability that a $z$-score from the standard normal distribution will lie within the intervals.

$0 \leq z \leq 1.8$

Explain how the range is used in scenario analysis.