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What is time? What is it exactly? Is it an illusion created by space and motion? We can't measure time without a form of motion.? Help me with this srd equation? What is the probability of rolling two six’s when two dice are rolled at the same time? Assume a Normal Distribution with a mean of 98.7 and IQR or .67. Find the standard deviation. I do not know where to begin with this one? Anyone help me to make a linear model from a real world problem?