The marks (out of 50) obtained by 40 students are grouped as follows: Class (marks)…

MATHEMATICS · Single correct · CBSE · Mathematics · Statistics · Statistics

Problem

The marks (out of 50) obtained by 40 students are grouped as follows: Class (marks) 0–10 10–20 20–30 30–40 40–50 Frequency   5   9   12   8   6 What is the cumulative frequency for “less than 40” marks? (a) 2626 (b) 3434 (c) 4040 (d) 2222

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