At a particular state college, the average course load is 15.2 units per semester. The standard deviation is 2.28. these data are normally distributed. What proportion of students take more than 17 units? What proportion take less than 11 units?

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step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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