Answer:
2
Step-by-step explanation:
2 is the answer because the circle touches the line only 2 times.
Hope this helps.
Answer:
z1 = -1.95
z5 = 0.05
z6.5 = 0.8
Step-by-step explanation: Good luck! :D
Answer:
1 quantitative
2 32 responded yes, 18 responded no
3 margin error 32%{n}
4 error of students on their phone / not
5 18/-/50
6 16%
7 2%
Step-by-step explanation:
a 95% confidence interval with a 4 percent margin of error means that your statistic will be within 4 percentage points of the real population value 95% of the time.
The margin of error tells you the range of values above and below a confidence interval.
First thing to do is to solve each of these for y. The first one is y=-4x-3; the second one is y=4x-21; the third one is y=4x+21; the fourth one is y=-4x+3. From that you can tell the positive slopes are found in the second and third equations. Those are the ones we will test now for the point (3, -9). y=-9 and x=3, so let's fill in accordingly. The second equation filled in is -9=4(3)-21. Does the left side equal the right when we do the math? -9=12-21 and -9=-9. So the second one works. Just for the sake of completion, let's do the same with the third: -9=4(3)+21. Does -9=12+21? Of course it doesn't. Our equation is the second one above, y+9=4(x-3).
