Question on: WAEC Mathematics - 2008
Find the mean deviation of these numbers 10, 12, 14, 15, 17, 19.
A
2.5
B
2.6
C
2.7
D
2.8
Ask EduPadi AI for a detailed answer
Correct Option: A
\(\begin{array}{c|c} x & d = x - \bar{x} & |d| \ \hline 10 & -4.5 & 4.5 \ 12 & -2.5 & 2.5\ 14 & -0.5 & 0.5\ 15 & 0.5 & 0.5\ 17 & 2.5 & 2.5\ 19 & 4.5 & 4.5\ \hline \sum x = 87 & & \sum|d| = 15\end{array}\)
\(\bar{x} = \frac{\sum x}{n}\)
= \(\frac{87}{6}\)
= 14.5
\(\bar{x} = \frac{\sum x}{n}\)
= \(\frac{87}{6}\)
= 14.5
Add your answer
Please share this, thanks!
No responses