The random variable X has the following discrete probability distribution Discrete Probability Distribution X P(x) 5.00 0.28 13.00 0.35 21.00 0.07 29.00 0.07 37 00 0.23 a) Find the expected value of random variable X For full marks your answer should be accurate to at least two decimal places. Expected Value: 0 b) Find the variance of this discrete probability distribution For full marks your answer should be accurate to at least two decimal places Variance: 0 c) Find the standard deviation of this discrete probability distribution For full marks your answer should be accurate to at least two decimal places Standard Deviation: 0