One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to a​ B, 2 points to a​ C, 1 point to a​ D, and 0 points to an F. What is the GPA of a student who gets an A in a 4​-credit ​course, a B in each of three 3​-credit ​courses, a C in a 3​-credit ​course, and a D in a 4​-credit ​course? The mean grade-point score is ______? ​(Round to the nearest tenth as​ needed.)

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