Answer:
B
Step-by-step explanation:
When you flip over the y-axis you the x is multiplied by -1
Answer:

And replacing we got:

And for this case the standard error assuming normality would be given by:

And replacing we got:

Step-by-step explanation:
For this problem we know the following notation:
represent the sample size selected
represent the number of airplane travelers who after a flight would fly that airline again
The estimated proportion for this case would be:

And replacing we got:

And for this case the standard error assuming normality would be given by:

And replacing we got:

We have to use basic combinatorics to solver his problem. We first have to determine what kind of problem this is.
Does order matter in this question? Yes it does. So it is a permutation.
Is is a permutation with repetition? No, because once a performer goes, they cannot perform again. Hence, we have defined this problem as a <span>permutation without repetition.BUT HOW MANY PERFORMERS ARE THERE??</span>
Answer:
Step-by-step explanation:
1.24