8 as that means what two of the same number makes up , in this case 64. 8x8=64
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
Answer:
Assuming this is for a Conic Section. There is no property as it does not match a conic section.
First substitute
(3)(4)/4
then simplify.
12/4
then solve
3
