For this problem, the most accurate is to use combinations
Because the order in which it was selected in the components does not matter to us, we use combinations
Then the combinations are 
n represents the amount of things you can choose and choose r from them
You need the probability that the 3 selected components at least one are defective.
That is the same as:
(1 - probability that no component of the selection is defective).
The probability that none of the 3 selected components are defective is:
Where 
is the number of ways to select 3 non-defective components from 117 non-defective components and 
is the number of ways to select 3 components from 120.
So:
Finally, the probability that at least one of the selected components is defective is:
P = 7.4%
111) 5:4
112) 3.6
113) -4
114) 0.3 units down, 0.4 units to the left
Answer:
obtuse because 6^2+10^2<10^2
Step-by-step explanation:
Answer:
Your score must be greater than 117.4
Your teammate is correct, because you only need 117.4 to win.
Answer:
D is correct (I think).
Step-by-step explanation:
A and C are completely invalid, as A is a linear function and C does not go up in intervals of 25.
Answer C is a linear function and is represented by y=x+1, but there are potential other reasons that it could be considered a linear function.
Answer D cannot be solved by y=mx+b because it is an exponential function.
