Prob (first defective) = 4 / 20 = 1/5
Prob(2nd defective) = 3/19
Prob (3rd defective) = 2/18 = 1/9
Pron 4th defective) = 1/ 17
Prob ( all 4 defective) = 1/5 * 3/19 * 1/9 * 1/17 = 1 / 4845 answer
Answer:
1 - 7
2 - 5
3- 27.5
Step-by-step explanation:
1. Vertical
2. Alternate
3. congruent
4. AAS or SAA
wait writing on a piece of paper
