K Patty has just completed her second semester in college. She earned a grade of D in her 4-hour calculus course, a grade of B in her 2-hour sociology course, a grade of B in her 3-hour chemistry course, and a grade of A in her 5-hour speech writing course. Assuming that A equals 4 points, B equals 3 points, C equals 2 points, D equals 1 point, and F is worth no points, determine Patty's grade-point average for the semester. Patty's grade point average is . (Round to two decimal places as needed.)