Ask Question
24 December, 21:15

A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lights are selected one at a time without replacement and tested until both defective lights are found, what is the probability that both defective lights will be found after exactly three trials? (Round your answer to four decimal places.)

+1
Answers (1)
  1. 24 December, 22:50
    0
    Possibility 1: nondefective-defective-defective

    possibility 2: defective-nondefective-defective

    possibility 1: 8/10x 2/9 x 1/8 = 16/720=1/45

    possibility 2: 2/10 x 8/9 x 1/8 = 16/720=1/45

    answer: 2/45
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A box contains two defective Christmas tree lights that have been inadvertently mixed with eight nondefective lights. If the lights are ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers