A random variable X has this probability distribution: x 0 1 2 3 4 5p (x) 0.1 0.3 0.4 0.1 ? 0.05 a. Find p (4). b. Find μ and σ. c. Calculate the interval μ ± 2σ. What is the probability that X will fall into this interval? d. If you were to select a very large number of values of X from the population, wouldmost fall into the interval μ ± 2σ? Explain