Find the mean deviation of the set of numbers 4... - JAMB Mathematics 1994 Question
Find the mean deviation of the set of numbers 4, 5, 9
A
zero
B
2
C
5
D
6
correct option: b
x = \(\frac{\sum x}{N}\)
= \(\frac{18}{3}\)
= 6
\(\begin{array}{c|c} x & x - x & x - x \ \hline 4 & -2 & 2\ 5 & 1 & 1\ 9 & 3 & 3\ \hline & & 6\end{array}\)
M.D = \(\frac{|x - x|}{N}\)
= \(\frac{6}{3}\)
= 2
= \(\frac{18}{3}\)
= 6
\(\begin{array}{c|c} x & x - x & x - x \ \hline 4 & -2 & 2\ 5 & 1 & 1\ 9 & 3 & 3\ \hline & & 6\end{array}\)
M.D = \(\frac{|x - x|}{N}\)
= \(\frac{6}{3}\)
= 2
Please share this, thanks:
Add your answer
No responses