vector a⃗ points in the negative y direction and has a magnitude of 5 km. vector b⃗ has a magnitude of 15 km and points in the positive x direction.

Mr. chiu made a dot plot after asking his students a question. based on the dot plot, which statements are correct? check all that apply. eleven students answered mr. chiu's question. twelve students answered mr. chiu's question. three people studied for two hours. three people studied for three hours. everyone who responded studied for at least one hour. four people studied for four or more hours