A= 3,3
B= -2,3
C=-1,-1
D=1,-3
Answer:
it's b hope it helps you out
Answer:
The range of values likely to contain the true value of the population parameter is between 44% and 52%.
Step-by-step explanation:
Confidence interval concepts:
A confidence interval has two bounds, a lower bound and an upper bound.
These bounds are dependent of the sample mean and of the margin of error.
The lower bound is the sample mean subtracted by the margin of error, while the upper bound is the margin of error added to the sample mean.
The confidence interval is likely to contain the true value of the population parameter.
In this question:
Sample mean: 48%
Margin of error: 4%
48 - 4 = 44%
48 + 4 = 52%
The range of values likely to contain the true value of the population parameter is between 44% and 52%.
Answer:
She got 5 incorrect.
Step-by-step explanation:
In order to find this, we start by using the formula for percentage.
Correct/Total = Percentage
Now we put in known quantities.
Correct/25 = .8
Now to solve we multiply both sides by 25
Correct = 20
Since she got 20 correct, we know she got 5 incorrect
Answer:
5/8 the answer answer answer
