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The standard deviation of the observatio...

The standard deviation of the observations 6,5,9,13,12,8,10 is
`(a)6` (b) `sqrt(6)` (c) `(52)/7` (d) `sqrt((52)/7)`

Text Solution

Verified by Experts

The given observations are `6,5,9,13,12,8,10`
Now,
`sumx_i==6+5+9+13+12+8+10=63`
`sum_(x_i)^2 = 36+25+81+169+144+64+100=619`
...
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