The length of tome it takes to complete a eork puzzle is found to be normally distributed with a mean of 76 seconds and a standard deviation of 13 seconds. Using the 50%-34%-14# figures, find the approximate percentage of score (on tine to complete the word puzzle) that will be above of below the following values. (a) above 100 (b) below 100 (c) above 64 (d) below 64 (e) above 76 (f) below 76 (g) above 88 (h) below 88 (i) above 52 (j) below 52

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