Avg of fisrt 20 multiple of 7
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Average = Sum of all
observations ÷ Number of all
observations.
=7+14+21+28+35+42+49+56+63+70+7
7+84+91+98+105+112+119+126+133+
140/20. = 1,470/20. = 73.5.
observations ÷ Number of all
observations.
=7+14+21+28+35+42+49+56+63+70+7
7+84+91+98+105+112+119+126+133+
140/20. = 1,470/20. = 73.5.
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