Enable text based alternatives for graph display and drawing entry

Try another version of this question

Calculate `bar x` (x-bar) for the data shown, to two decimal places

x
8.1
7.1
4.9
6.1
12.6
22.4
8.8
17
2.2
8.2

X
MathQuill
   x  x    n  |   | (   ) π DNE
   x    (   ) π DNE
( ) ( ] [ ) [ ] —∞ DNE
< > or All Real Numbers DNE
log logn ln n  | | e 
sin cos tan arcsin arccos arctan  
[more..]