The monthly income of ten persons are as follows 1400 1500 1560 1440 1475 1490 1575 1520 1470 1480 find average bt direct and deviation method
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Answer:
Average = sum of observation/no. Of observation Average=1400+1500+1560+1440+14750+ 1490+1575+1520+1470+1480/10 =28185/10 =2818.5
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sorry bro i dont know...
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