Question: A random variable X follows the uniform distribution with a lower limit of 620 and an upper limit of 820. a. Calculate the mean and

A random variable X follows the uniform distribution with a lower limit of 620 and an upper limit of 820.

a.Calculate the mean and the standard deviation for the distribution. (Round intermediate calculation for standard deviation to 4 decimal places and final answer to 2 decimal places.)

b.What is the probability that X is less than 750? (Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.)

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