individual probability in a sentence

Examples

1. How would I go about determining the probability that an element is part of " Collection B " if it has the three most significant features, in this case Feature 1, Feature 2, and an absence of Feature 5 ( with individual probabilities of 0.96?.03, 0.88?.04, and 0.66?.08 respectively )?
2. How would I go about determining the probability that an element is part of " Collection B " if it has the three most significant features, in this case Feature 1, Feature 2, and an " absence " of Feature 5 ( with individual probabilities of 0.96?.03, 0.88?.04, and 0.66?.08 respectively )?