mean of 7 observation is 9 find the sum of observation
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Let the sum of observations be x
Hence,
x/7=9
=> x=9*7
=> x =63
The sum of observations is 63.
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Soo simple:-)
Hence,
x/7=9
=> x=9*7
=> x =63
The sum of observations is 63.
.
.
.
.
.
Soo simple:-)
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