Question

A jar contains 11 red marbles, 12 blue marbles, and 6 white marbles. Four marbles from this jar are selected, with each marble being replaced after each selection. What is the probability that the first red marble chosen is on the 5th selection?

0.0128
0.0563
0.1484
0.2815

Answer 1

Answer: Option 2: 0.0563
Total Marbles: 29
Option:
(B/W) • (B/W) • (B/W) • (B/W) • (R)
18/29 • 18/29 • 18/29 • 18/29 • 11/29
= Exact Form: 1154736/20511149
= Decimal Form: 0.05629796