Respuesta :
The mean is defined as the sum of total number divided by count of number. The removed number can be determine by using mean formula.
The removed number is 16.
Given:
Mean is [tex]12[/tex].
Let the removed number is [tex]R[/tex].
The formula for mean is as follows.
[tex]\rm {Mean}=\frac{Sum\:Numbers}{5}[/tex]
Substitute the value in above equation.
[tex]\begin {aligned}\rm{Mean}=\frac{Sum\:of\: Numbers}{5}\\12\times 5= \rm{Sum\:of\: Numbers}\\\rm{Sum\:of\: Numbers}=60\end[/tex]
The formula for mean when one number is removed.
[tex]\begin{aligned}\rm {Mean}=\frac{Sum\: of\: Number-R}{4} \\11=\rm \frac{60-R}{4}\\44=\rm{60-R}\\R=16\end[/tex]
Thus, the removed number is 16.
Learn more about Mean here:
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