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Follwing are the marks obtained by 8 stu...

Follwing are the marks obtained by 8 students in Statistics.
Calculate the arithmetic mean.
`{:("Marks",15,18,16,45,32,40,30,28):}`

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`{:("Marks (X)"),(" "15),(" "18),(" "16),(" "45),(" "32),(" "40),(" "30),(" "28),(sumX=224):}`
`barX=(sumX)/N=(X_(1)+X_(2)+...X_(10))/10=224/8=28`
Average marks of the 8 students = 28.
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