[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 %].
37+37+37+37=148 all you have to do is add 37 together four times
Y = -4x +5 should be right!
1. -10v(v^3 + 6v^2 + 7)
2. 4m^2(3m^3 + 9m + 10)
3. 10(n^2 + 5n - 8)
4. 42^3= 70488/18= 4166
42^2= 1764/18= 98
-18(x^4 + 4166 - 98)
