Question 1050441:  The amount of time that Carlos plays video games in any given week is normally 
distributed. If Carlos plays video games an average of 15 hours per week, with a 
standard deviation of 3 hours, what is the probability of Carlos playing video games 
between 15 and 18 hours a week 
 Answer by ewatrrr(24785)      (Show Source): 
You can  put this solution on YOUR website! average of 15 hours per week, with a standard deviation of 3 hours 
P (15 ≤ x ≤ 18)   
TI syntax is normalcdf(smaller, larger, µ, σ). 
P (15 ≤ x ≤ 18) = normalcdf(15, 18, 15, 3) 
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