The length of time it takes to complete a word puzzle is found to be normally distributed with a mean of 81 seconds and a standard deviation of 8 seconds. Using the 50% -34% -14% figures, find the longest time to complete the word puzzle that a person can have while being in the bottom most percentages of scores for each of the following percentages. (a) 16% (b) 84% (c) 2% (d) 98% (e) 50%

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