-7 - -3 HELP PLEASE!!!!!!!!!!!!!!!
1 answer:
You might be interested in
Answer:
0.4444
Step-by-step explanation:
Use the following property to ease the calculation:
P(At least one)=1-P(None)
Total number of electrical components: 9
Number that does not function well :1
Number that functions well : 8
We have ways to to choose 4 good components from 8.
We have ways to choose 4 components from a total of 9.
If all function properly then none is bad, we way to do this.
P(At least one)=
P(At least one)=
P(At least one)=0.4444