Multiplying a random variable by a constant, c, multiplies its expected value by c. B. Multiplying a random variable by a constant, c, multiplies its expected value by 2c. C. Multiplying a random variable by a constant, c, multiplies its expected value by StartFraction 1 Over c EndFraction . D. Multiplying a random variable by a constant, c, multiplies its expected value by c squared. E. Multiplying a random variable by a constant, c, has no effect on its expected value