Question

A desk contains the different colored markers listed below3 green markers 5 blue markers10 red markersa marker would be randomly select from the drawer and then replaced,then another marker would be randomly selected from the drawer.what is the probability that a green marker will be selected both times

Answer 1

Totall probabilities =5+3+10=18probabilities so 3/18×3/18 will be the probability if it wasnt replaced then it would have been 3/18×2/17 as 1 marker is reduced so 3/18x3/18 =9/324 further simplify =1/36 is the probability :)