Answer:
Step-by-step explanation:
Assuming conditions are met, the formula for a confidence interval (CI) for the difference between two population proportions is where and are the sample proportion and sample size of the first sample, and and are the sample proportion and sample size of the second sample.
We see that and . We also know that a 98% confidence level corresponds to a critical value of , so we can plug these values into the formula to get our desired confidence interval:
Hence, we are 98% confident that the true difference in the proportion of people that live in a city who identify as a democrat and the proportion of people that live in a rural area who identify as a democrat is contained within the interval {-0.2941,-0.0337}
The 98% confidence interval also suggests that it may be more likely that identified democrats in a rural area have a greater proportion than identified democrats in a city since the differences in the interval are less than 0.
Answer:
So the mid-point is (10.5,2)
Step-by-step explanation:
By using mid-point formula
M(x,y)=(x1+x2)/2,(y1+2)/2
Putting the values of the coordinates
M(x,y)=(6+15)/2,(-4+8)/2
M(x,y)=21/2,4/2
M(x,y)=10.5,2
So the mi-point is (10.5,3)
I hope this will help you :)
It would be D because in an absolute value u cant have any negative numbers unless its on the outside, since this one doesn't have a negative sign on the outside it would have to be pointing upward. And it says that its the absolute value of x minus 7 which means the graph moves down 7.
The correct answer for this question is this one: "B. the quotient 5 cubed over 5 to the fourth, raised to the negative 3 power"
<span>A. 5 times the quotient 5 cubed over two-fifths, raised to the second power
B. the quotient 5 cubed over 5 to the fourth, raised to the negative 3 power
C. 5 to the negative 2 over 5 to the negative 5
E. 5 times the quotient 5 to the 5 over 5 cubed</span>