Suppose that we perform an experiment where we classify the outcome as either a success or failure. Let the probability of a success be 0.4. Now we want to repeat this experiment n= times and let the random variable X count the number of successes. Visualize a probability tree for this solution.1. If a single path has 2 success and the rest failures (in any order) then the probability of that single path is?2. Note that these 2 successes may be in any of the stages so there are ____ of these paths which have 2 successes.3. Therefore, P(X=2) = ?