Question on: JAMB Mathematics - 2010
Find the standard deviation of 2, 3, 5 and 6
A
√6
B
√10
C
√\(\frac{2}{5}\)
D
√\(\frac{5}{2}\)
Ask EduPadi AI for a detailed answer
Correct Option: D
(\begin{array}& x & x - \bar{x} & (x - \bar{x})^2 \2 & -2 & 4 \ 3 & -1 & 1 \ 5 & 1 & 1 \ 6 & 2 & 4\ \hline \sum x = 16 & & \sum (x - \bar{x}^2) = 0 \end{array})
___________________________________
(\bar{x}) = (\frac{\sum x }{N})
= (\frac{16}{4})
= 4
S = (\sqrt{\frac {(x - \bar{x})^2}{N}})
= (\sqrt{\frac {(10)}{4}})
= (\sqrt{\frac {(5)}{2}})
Add your answer
Please share this, thanks!
No responses