From long term observation, experiment 1 is known to be 70% accurate i.e. it predicts type A or B correctly in 70% of cases.

Experiment 2 is totally independent. It uses different methods and different characteristics. It is also known to predict correctly in 70% of cases.

If both experiment 1 and experiment 2 predict type A, what is the probability that it is type A. Does the fact that both experiments predict the same outcome add to my certainty?