According to the probability histogram for a discrete random variable X, what is μx? Histogram with x-axis labeled x with scale from 0 to 5, y-axis labeled P(x) with scale from 0 to 0.35 with five bars. Bar 1 height is 0.1, bar 2 height is 0.2, bar 3 height is 0.3, bar 4 height is 0.25, bar 5 height is 0.15. 3.15 3.05 2.89 2.65 0.2