Answer:
BC with the arrow going towards the right
Answer:

Step-by-step explanation:
The formula of a slope:

We have the points (1, -1) and (6, 2).
Substitute:

8 centimeters equals to 80 millimeters
Using the z-distribution, as we are working with a proportion, it is found that 1016 constituents are required.
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:

In which:
is the sample proportion.
The margin of error is given by:

In this problem, we have a 95% confidence level, hence
, z is the value of Z that has a p-value of
, so the critical value is z = 1.96.
The estimate is of
, while the margin of error is of M = 0.03, hence solving for n we find the minimum sample size.






Rounding up, 1016 constituents are required.
More can be learned about the z-distribution at brainly.com/question/25890103