Hi does anyone know the answer to this? thank you ! :(

How to determine whether two known pairs of points are on the same line.

Standard deviation of 19,29,21,22,23

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189