A box contains 4 red and 2 blue chips. a chip is chosen at random and then replaced. a second chip is then drawn at random. a) show all the possible outcomes using a probability tree diagram. b) calculate the probability of getting: 1)at least one blue. 2) one red and one blue. 3)two of same color

In an ecosystem, marsh snails feed on phytoplankton and painted turtles feed on marsh snails. pollution has resulted in the depletion of phytoplankton. what effect would this situation likely have on the population of marsh snails and painted turtles? as phytoplankton were destroyed, the population of marsh snails would most likely then the population of painted turtles would mostly likely a. 1. increase 2. decrease 3. stay the same b. 1. increase 2. decrease 3. stay the same