Answer:
140.19
Step-by-step explanation:
plss put me as branlist if correct i mean if u want:)
I’m. It sure but I need points so sorry
Answer:
-12
Step-by-step explanation:
-12/2 = -6
-6+15 = 9
Answer: the margin of error is 0.02
Step-by-step explanation:
Confidence interval for population proportion is written as
Sample proportion ± margin of error
If the confidence interval for this population proportion is (0.52, 0.56.), it means that the lower boundary is 0.52 and the upper boundary is 0.56
Let x represent the sample proportion and y represent the margin of error. Therefore,
x - y = 0.52
x + y = 0.56
Subtracting the second equation from the first equation, it becomes
- 2y = - 0.04
y = - 0.04/-2
y = 0.02
