Parts delivery
Repairing a copy machine requires that two parts be delivered from two suppliers. The probability that part A will be delivered on Thursday is 0.6, and the probability that part B will be delivered on Thursday is 0.8. If the probability that one or the other part will arrive on Thursday is 0.9, what is the probability that both will be delivered on Thursday?
Whites
Nonwhites
Total
Opinion
Reps.
Dems.
Reps.
Dems.
Favor oppose total
300 100 400
100 250 350
25 25 50
10 190 200
435 565 1000
