Question

A coin-operated machine sells plastic rings. It contains 6 yellow rings, 11 blue rings, 15 green rings, and 3 black rings. Sarah puts a coin into the machine. Find the theoretical probability she gets a black ring. Express your answer as a decimal. If necessary, round your answer to the nearest thousandth. A. 11.667 B. 0.171 C. 5.833 D. 0.086

Answer 1

3/35 chance of it happening so rounded would be D. 0.086 as the answer :)

Answer 2

Answer: D. 0.086

Explanation:

Given : The number of black rings = 3

The total number of rings =
`6+15+11+3=35`

Now, Sarah puts a coin into the machine, then the theoretical probability she gets a black ring will be :-

`(3)/(35)=0.08571428571\approx0.086`

Hence, the theoretical probability she gets a black ring = 0.086