A farmer purchased a large circular field with an area of 1,017.36 square yards to build a farm. The farmer wants to
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Try this solution:
1. for probability of both televisions work:
2. for probability of at least on is defective (it means, the sum = one is defective and two are defective):
- for P(1defective);
- for P(2defective);
totaly for at least one is defective: