An experiment is conducted to select a suitable catalyst for the commercial production o ...

An experiment is conducted to select a suitable catalyst for the commercial production of ethylenediamine (EDA), a product used in soaps. Suppose a chemical engineer randomly selects 3 catalysts for testing from a group of 10 catalysts, 6 of which have low acidity and 4 of which have high acidity. Find the probability that no highly acidic catalyst is selected. Find the probability that exactly one highly-acidic catalyst is selected. How many highly acidic acids would you expect to be chosen? What is the standard deviation of the number of highly acidic catalysts chosen?