Connecticut has a z-score of 1.09. Interpret this z-score in context

Firms use marginal analysis to determine prices by a) changing prices in accordance with information from retailers. b) using comparisons with strong competitors to position prices accordingly. c) examining the effect on revenue of small changes to the price of one item. d) trying to minimize production costs by using better and more efficient methods.

Pleas give me brief explanation about deterministic model in advanced hydrology

98 points! include an answer and in advance!