the probability of selecting yellow ball is 1/3
Explanation:Number of red balls = 10
number of yellow balls = 20
number of orange balls = 30
Total balls in the urn = 10 + 20 + 30 = 60
Probability of selecting a yellow ball = Pr(Y)
[tex]Pr(Y)\text{ = }\frac{number\text{ of yellow balls}}{\text{Total balls}}[/tex][tex]\begin{gathered} Pr\text{ (Y) = }\frac{20}{60} \\ Pr\text{ (y) = 2/6 = 1/3} \end{gathered}[/tex]Hence, the probability of selecting yellow ball is 1/3
