Math Problem Statement
hasil tes suatu butir soal esay dari 10peserta didik adalah sebagai berikut 85, 60, 70, 60, 85, 65, 80, 90, dan 75. tentukan besaran nilai tingkat kesulitannya. a. 0,65 b. 0,70 c. 0,75 d. 0,80 e.0,85
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Mean
Average
Index of Difficulty
Formulas
Average formula: mean = sum of data points / number of data points
Index of Difficulty formula: difficulty index = average score / maximum possible score
Theorems
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Suitable Grade Level
Grades 10-12