Answer:
Binomial
There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.
Step-by-step explanation:
For each copy of the document, there are only two possible outcomes. Either it is defective, or it is not. This means that we can solve this problem using the binomial probability distribution.
Binomial probability distribution:
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinatios of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
In this problem
Of the 20 copies, 2 are defective, so
.
What is the probability that you will encounter neither of the defective copies among the 10 you examine?
This is P(X = 0) when
.


There is a 34.87% probability that you will encounter neither of the defective copies among the 10 you examine.
D because a binomial means the expression has two: x2 and -4
Answer: No, it would not be the mean of the tax paid by all US drivers.
To find the mean, we divided by 50 because there are 50 states. However, the number of people in each state is not equal. Therefore, the 50 states should not be treated as they are equal.
To find the mean correctly, we would have to find weight the value of each state according to the number of people in the state.
Answer:
Y =23,000X -4,5744,000
in 2019 = $693,000
Step-by-step explanation:
x1 y1 x2 y2
2004 348000 2013 555000
(Y2-Y1) (555000)-(348000)= 207000 ΔY 207000
(X2-X1) (2013)-(2004)= 9 ΔX 9
slope= 23000
B= -45744000
Y =23000X -45744000