calculate Arithmetic mean from the following data 7 13 15 20 40 30 by shortcut assumed method
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mean is equal to Sum of all observations/ total numbers
first arrange it in ascending order
7+13+15+20+30+40/6
95/6
== 15.833333......
first arrange it in ascending order
7+13+15+20+30+40/6
95/6
== 15.833333......
sarahnb143:
when u plus that numbers u would get 125 not 95
yes
actually i forhot to calculate 20
i missee. sometuimg
Answered by
3
Mean = sum of observation/no: of observation
= 7+13+15+20+30+40/ 6
= 125 / 6
= 20.833
= 7+13+15+20+30+40/ 6
= 125 / 6
= 20.833
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