The following table shows the scores of 50 students

MATHEMATICS · Subjective · GCSE · Mathematics · Statistics · Statistics

Problem

The following table shows the scores of 50 students, but two class frequencies are missing. Class (scores): 20–30 30–40 40–50 50–60 60–70 Frequency: 8 f1f_1 15 f2f_2 7 If the mean score is 45, determine the values of f1f_1 and f2f_2.

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