Question: 1 . Confirm using technology that 1 2K standard normal random variable lies between the following integrals. Show your work. 1 dT z 0.6827.

1 . Confirm using technology that 1 2K standard normal random variable lies between the following integrals. Show your work. 1 dT z 0.6827. This shows that the probability that a 2 1 and 1 is 68.27%. Now, without using technology, find 1 x exp 1 2m 2 . Use the results of the previous exercise to evaluate exp 270-2 20-2

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