First Attempt of Analyzing Data

The reading comprehension test consisted of 15 multiple choice questions.
Student scores:

Percent Correct - Amount of students

100% - 1
93% - 4
86% - 4
80% - 4
73% - 2
66% - 8
53% - 6
40% - 1
26% - 1

Out of 31 students 16 students or 51% of the class scored below a 70% (passing) on the test. This is a good benchmark number for the post assessment. My goal would be 80% of my class score at or above 70%.