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2015-11-21T21:47:47+05:30

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Mean=sum of observation
            no. of observations
 median =for odd: n+1
                               2
               for even:n/2
                               
mode =  highest no. in a given fequency
0
2015-11-21T21:58:10+05:30
Mean
x=∑fixi/∑fi
median
=l+(n/2-cf)/f x h
mode 
=l+(f₁-f₂/2f₁-f₀-f₂) x h
1 5 1