To create a simulation of photosynthesis in a forest of 50,000 maple trees, a scientist needs to determine the average number of leaves on an actual maple tree. which of the following is the best course of action for establishing this parameter? . a. determine the average number of leaves for 10 randomly selected maple trees. b. choose a value at random to represent the average number of leaves on a tree. c. count the number of leaves on a single tree and assume all trees are the same. d. divide the total number of leaves on all the trees in a forest by 50,000.

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.