Assume random variable X follows a normal distribution with mean 50 and standard deviation of 10 a Use the Empirical rule to find P 40 X 60 Write as a probability not as a percentage 0 68 b Use the Empirical rule to find P 40 X 50 Write as a probability not as a percentage 0 34 c Use the Empirical rule to find P 30 X 50 Write as a probability not as a percentage d Use the Empirical rule to find P X 80 Write as a probability not as a percentage e Use the Empirical rule to find P 20 X 60 Write as a probability not as a percentage