Answer:

Step-by-step explanation:
For this case we have the following data:
represent the random sample 1 selected
represent the proportion of success for the sample 1 selected
represent the random sample 2 selected
represent the proportion of success for the sample 2 selected
We know for this case that we can use the normal approximation since for both cases we have:


We have the randomization condition and we assume that the two samples are <10% of the entire population size.
So then we can use the following distribution for the proportions:

For this case we want to find the distribution for the difference of these two proportions and we have this:

So then the dtandard deviation would be given by:

Answer:
12%
Step-by-step explanation:
Add each number of students in the graph together. 1 + 6 + 2 + 3 = 12, so it's 12%.
the answer is the last one.
you convert to point slope form and get
y = 4x - 5
when you graph that (along with the other equations) it is the only one that passes through the point (1,-1)
Step-by-step explanation:
u should attach the picture of the question because its difficult to identify where x is located
kindly attach the picture