Answer: 
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
Add 8.2 to both sides of the inequality. Then, you obtain:
Now you must divide both sides by -1.2, as you can see below:
(The direction of the sign will change).
Therefore, you obtain the following solution:
Answer:
(0.185, 0.413)
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of 
, and a confidence interval 
, we have the following confidence interval of proportions.
In which
Z is the zscore that has a pvalue of 
.
For this problem, we have that:
98% confidence interval
So 
, z is the value of Z that has a pvalue of 
, so 
.
The lower limit of this interval is:
The upper limit of this interval is:
So the correct answer is:
(0.185, 0.413)
Answer:
A
Step-by-step explanation:
EDGE
Multiply by z to get
wz = xy
divide by x
y = wz/x
Answer:
5 -2n
Step-by-step explanation:
There are several ways you can find the linear function for this table of values.
- find the slope and intercept and write the slope-intercept equation
- find the slope and use a point to write the point-slope equation; solve for y
- recognize the x-values are sequential starting with 1, so the y-values are an arithmetic sequence; write the formula for the n-th term of an arithmetic sequence
Using the last approach, we see that the first term is 3, and the common difference is 1-3 = -2. Then the n-th term is ...
an = a1 +d(n-1) . . . . . . general term of arithmetic sequence with first term a1 and common difference d
an = 3 -2(n-1) . . . . sequence with a1=3, d=-2
The output when the input is n is ...
3 -2(n -1)
This can be simplified to ...
5 -2n . . . . output for input of n
