Orientation|HAASIL 3.0 Batch

In aryl halides , the reactivity is controlled by stronger_________ and 0. p orientation is controlled by weaker________.

In a batch of 10 articles.4 articles are defective.6 articles are taken from the batch for inspection.If more than 2 articles in this batch are defective,the whole batch is rejected.Find the probability the batch will be rejected.