Question: 6.58 Normal probabilities For a normal distribution, find the probability that an observation is a. Within 1.96 standard deviations of the mean. b. More than

6.58 Normal probabilities For a normal distribution, find the probability that an observation is

a. Within 1.96 standard deviations of the mean.

b. More than 2.33 standard deviations from the mean.

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