A discrete random variablr X has its probability mass function given by this histogram. (Attached) What is the Expected Value of X? The Standard Deviation of X is likely closest to which number below?...

A discrete random variablr X has its probability mass function given by this histogram. (Attached) What is the Expected Value of X? The Standard Deviation of X is likely closest to which number below? (-2, 0, 0.25, 1.5, or 9 ?) 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05