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