probability - Irene and her little brother are coloring. Irene picks a crayon from the box and then her little brother picks one. Are these two events dependent or independent?

Krishna (last edited 2 years ago) (Expert, Educator @Qalaxia)

Step 1: Recall the definitions of the independent and dependent events.

NOTE: Two events are independent if the outcome of the first event does not affect the outcome of the second event.

Two events are dependent if the outcome of the first event can affect the outcome of the second event.

The two events are dependent. Irene does not put the first marble back, so her first pick affects which marbles are left for her second pick.