The technology director at Mountainview School wants to increase student use of the computer lab. She conducts a survey to find out what would encourage students to come to the lab more often. A. Survey all of the students who stay after school to participate in sports programs.
B. Select every third student who is in the library after school, and survey those students.
C. Select every 20th name from an alphabetical listing of all students enrolled in the school, and survey those students.
D. Select every 10th student who visits the computer lab in one week, and survey those students.

With #! i’ve tried to figure it out but i can’t.

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99