The given data is 6, 4, 3, 8, 9, 12, 13, 9
6+4+3+8+9+12+13+9
Mean
64
= 8
how 8 will come as denominator
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Answer:
average mean =sum of observations ÷no. of observations
mean=6+4+3+8+9+12+13+9÷ 8
=64÷8
=8
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