If the mean of frequency distribution is 8.1 and \( \sum \mathrm{f}_{\mathrm{i}} \mathrm{x}_{\ma... VIDEO
If the mean of frequency distribution is 8.1 and \( \sum \mathrm{f}_{\mathrm{i}} \mathrm{x}_{\mathrm{i}}=132+5 \mathrm{k}, \sum \mathrm{f}_{\mathrm{i}}=20 \), then find \( \mathrm{k} \).https://bit.ly/YTAI_PWAP https://www.pw.live
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