Mathematics, 30.03.2020 23:25 Valrom
A teacher collected information from a class of 25 students about the time, in hours, they spent studying the previous week and the time, in hours, they spent on the Internet the previous week. The value of the correlation coefficient between hours spent studying and hours spent on the Internet was −0.72. If the teacher changes the units of each variable from hours to minutes, what will be the value of the correlation coefficient between minutes studying and minutes spent on the Internet?
Answers: 3
Mathematics, 21.06.2019 16:10
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
Answers: 2
Mathematics, 21.06.2019 18:00
What can you determine about the solutions of this system
Answers: 1
Mathematics, 21.06.2019 20:30
Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10
Answers: 2
A teacher collected information from a class of 25 students about the time, in hours, they spent stu...
Mathematics, 20.12.2019 05:31