Question

Numbers 1 to 30 on 30 identical looking chubs

Write and put in a box. Find a probability that if a chubby is drawn randomly from that box, the number on that chub is not divisible by 3.​

Answer 1

Answer:

20

Step-by-step explanation:

number of numbers (lol) divisible by 3 from 1 to 30 = 10 (3,6,9,12,15,18,21,24,27,30)

P(E) = 1 - P(not E)

So P(not E) = 1 - P(E)

P(not divisible by 3) = total numbers - Numbers divisible by 3

                                 = 30 - 10

                                 = 20

HOPE IT HELPS