Question: 25 items are randomly selected from a batch of 1000 items each if these items has the same probability of being defective event a is

25 items are randomly selected from a batch of 1000 items each if these items has the same probability of being defective event a is defined as the first kf the 25 items turns out to be defective and event b js defined as the last of the 25 items turns out to be defective what can u say about events and event b

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