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: 11·10·9 = 990 ways
Step-by-step explanation: first can be chosen 11 different way, second 10 different way and third 9 different way
Answers would be A, B and C
68.01
A quotient is the answer to two numbers being divided.
Meaning 68.0052÷12 is 68.01
Wouldn't you just multiply 120 by 0.95