Refer to Exercises 7.22 and 7.23. Calculate P(FR Positive) and P(FR Positive | TR Positive).
Compare P(FR Positive) and P(FR Positive | TR Positive). Would you say that the test results and field results are independent? Why or why not? Discuss the difference between conditional independence and regular independence.

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PiCP High) = 0.27 PiTR Positive CP High)-0.82 PTR Negative | CP High) 0.18 FR Positive | CP High) = 0.95 Pi FR Negative CP High) = 0.05 Pi CP Low) 0.73 PrTR Positive CP Low) = 0.21 PTR Negative | CP Low) 0.79 P(FR Positive CP Low 0.17 PiFR Negative | CP Low)-0.83