Question 698847
a) P(x < 78) 
78 is 0.5 standard deviations below the mean ---> 30.9%


b) P(76 < x < 84)
within 1 standard deviation of the mean ---> 68.2%


c) P(x > 82)
0.5 and above standard deviations above the mean ---> 30.9%

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