Answer:
±4
Step-by-step explanation:
The margin of error in a confidence interval is half the range:
(84 - 76) / 2 = 4
So the margin of error is ±4.
Answer:
65 square yards
Step-by-step explanation:
5x5=25
5x4=20
5x4=20
20+20+25= 65
Answer:

Step-by-step explanation:
The range is set of all y-values. The range starts from minimum value to maximum value.
We don't have minimum value (approaching negative infinity.)
We have maximum value at x ≈ 2 equal 6.
Therefore the answer is
-inf <= y <= 6. But we don't usually write that. Instead, we cut out -inf and we get —

Answer:
There are 45 2-point questions and 5 4-point questions
Step-by-step explanation:
Your answer should be 1.7
I hope this helps! Good Luck!