4.A recent study set out to explain why innocent people are wrongfully convicted in certain cases yet acquitted in others the study can be accessed here:https://www.ncjrs.gov/pdffiles1/nij/grants/241389.pdf). One factor that was examined was the defendant's criminal history. A cross-tabulation displaying the relationship between having a previous criminal conviction and being erroneously convicted is presented below.

	Prior Criminal Record
Erroneous Conviction	Yes	No	Total
No	34	166	200
Yes	48	212	260
Total	82	378	460

1. Identify the independent and dependent variables in this problem.
2. What is the conditional probability that a defendant is erroneously convicted given he or she has a prior criminal record? What is the conditional probability that a defendant is erroneously convicted given he or she does not have a prior criminal record? Based on this, does it look like there is a relationship between having a criminal record and being erroneously convicted? Explain.