Question: 6.89 6.89 A variable is normally distributed with mean 6 and standard deviation 2. Find the percentage of all possible values of the variable that

6.89

6.89 A variable is normally distributed with mean 6 and standard deviation 2. Find the percentage of all possible values of the variable that a. lie between 1 and 7. b. exceed 5. c. are less than 4

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