Write the conjugates of them then FOIL both the top and bottom, then factor
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
Answer:
89%
Step-by-step explanation:
First find the total houses
890+110=1000 houses total
out of the 1000, 890 were for sale
so 890/1000 divide by 100
8.9/10
or 89%