Question

if you actually know plz give an explanation to the answer so i know you aren't just answering for points, please help this is due before 12:00

Answer 1

D

Explanation:

At least 30 minutes, so this means 30 minutes and above. Now add the probabilities starting from 30

1/4 + 1/4 + 1/8 + 1/16 = 11/16