Question 865869
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Hi
mean = 100, SD = 12 for population
Sample of 100:  s = 12/sqrt(100) = 1.2
P(x &#8804; 10)
z = -2/12/sqrt(100)= -2/1.2 = -1.6667 = 4.78%
P(x &#8804; 14) 
z = 1.6667 = 95.22
 P(10 &#8804; x &#8804; 14) = 95.22 - 4.78 = 90.44
Or
P(10 &#8804; x &#8804; 14)= normalcdf(10,14, 100,1.2)