ANSWER
1: 1/2
2: 4/9
3: 8
4: 5/18
5: Theo= What should happen
Exp= What actually happens
Answer:
0.4546
Step-by-step explanation:
nCr = n!/(n-r)!r!
Number of ways of selecting the four defective voltage regulators from 12 = 12C4 = 12!/(12-4)!4! = 12!/8!4! = (12 *11*10*9)/(4*3*2*1)
12C4 = 495 ways
Number of ways of selecting 2 defectives from line 1 = 6C2 * 6C2
6C2 = 6!/(6-2)!2! = 6!/4!2! = (6*5)/(2*1) = 15
6C2 * 6C2 = 15*15 = 225 ways
Probability = Number of possible outcomes/ Number of total outcomes
Probability that exactly 2 of the defective regulators came from line 1 = 225/40.95 = 0.4546
Answer:
x + y = -6
Step-by-step explanation:
Answer: -3
Step-by-step explanation: 15 - 18 = -3
Answer: 8.954 x 10^-15
Step-by-step explanation:
i took a test with this question and this was the answer
