Jambmaths question:
By how much is the mean of 30, 56, 31, 55, 43, and 44 less than the median?
Option A:
0.75
Option B:
0.50
Option C:
0.33
Option D:
0.17
Jamb Maths Solution:
$\begin{align} & Mean=\frac{30+31+56+55+43+44}{6}=\frac{259}{6}=43.16667 \\ & \text{Rearrange the data in increasing order of magnitude} \\ & 30,31,43,44,55,56. \\ & \text{The median fall between 43 and 44, So the median will be} \\ & \frac{43+44}{2}=\frac{87}{2}=43.5 \\ & \text{The difference }=43.5-43.16667=0.3333 \\\end{align}$
Jamb Maths Topic:
Year of Exam: