Question 1083119
Sent_to_Prison------	 373	48===421
Not_Sent_to_Prison----	568	33===601
==================941==81==1022

The expected values are for the upper left: 421*941/1022, and the second row left 601*941/1022
Expected are 
387.63==33.37
553.37==47.63
sum of (O-E)^2/E=0.55+4.46+0.38+6.49=11.88 (11.85 using TI-83)
The critical value is 3.84 at the 0.05 level
This is highly significant statistically; whether one should encourage it depends upon other factors, but this would be an important one.  About 89% go to prison who plea and about 95% who don't.