In the following grouped data

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

Problem

In the following grouped data, the mean is 160160. Find the missing frequency kk. Class interval: 120–140 140–160 160–180 180–200 200–220 Frequency: 12 k 15 9 4 (a) 2020 (b) 2626 (c) 3030 (d) 1616

Related theory

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