what is the mean of 11,45,20,16,8,22
11+45+20+16+8+22=122
122$$\mathrm{ERROR}$$
I learnt this a long time ago.
You have to add up all the number ( In this case )
$${\mathtt{11}}{\mathtt{\,\small\textbf+\,}}{\mathtt{45}}{\mathtt{\,\small\textbf+\,}}{\mathtt{20}}{\mathtt{\,\small\textbf+\,}}{\mathtt{16}}{\mathtt{\,\small\textbf+\,}}{\mathtt{8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{22}} = {\mathtt{122}}$$
And as there was 6 numbers to add up. You have to divide it by 6 to find the mean average.
$${\frac{{\mathtt{122}}}{{\mathtt{6}}}} = {\frac{{\mathtt{61}}}{{\mathtt{3}}}} = {\mathtt{20.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$
Why did you divide by 8 anon? There are only 6 numbers!
Mean is another word for average.
Add them up and divide by how many numbers that there are. :)
I learnt this a long time ago.
You have to add up all the number ( In this case )
$${\mathtt{11}}{\mathtt{\,\small\textbf+\,}}{\mathtt{45}}{\mathtt{\,\small\textbf+\,}}{\mathtt{20}}{\mathtt{\,\small\textbf+\,}}{\mathtt{16}}{\mathtt{\,\small\textbf+\,}}{\mathtt{8}}{\mathtt{\,\small\textbf+\,}}{\mathtt{22}} = {\mathtt{122}}$$
And as there was 6 numbers to add up. You have to divide it by 6 to find the mean average.
$${\frac{{\mathtt{122}}}{{\mathtt{6}}}} = {\frac{{\mathtt{61}}}{{\mathtt{3}}}} = {\mathtt{20.333\: \!333\: \!333\: \!333\: \!333\: \!3}}$$