Which of the following is correct? A. As the confidence level increases, the confidence interval gets narrower.
B. As the standard deviation increases, the width of the confidence interval increases.
C. As the sample mean increases, the confidence interval gets wider.
D. As the sample size increases, the confidence level increases.

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

The function f(x) is shown in this graph the function g(x)=6x

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.