Question

A bag contains 8 red marbles, 2 blue marbles, 5 white marbles, and 7 black marbles. What is the probability of randomly selecting:A white marble:A red marble:A red marble, white or blue marble: A black marble: A green marble:

Answer 1

`\begin{gathered} \text{Total}=8+2+5+7 \\ \text{Total}=22 \\ \text{White marble} \\ P=(5)/(22) \\ \text{The probability of selecting a white marble is }(5)/(22) \\ \text{red marble} \\ P=(8)/(22)=(4)/(11) \\ \text{The probability of selecting a red marble is }(4)/(11) \\ \text{black marble} \\ P=(7)/(22) \\ \text{The probability of selecting a black marble is }(7)/(22) \\ \text{Green marble} \\ P=(0)/(22)=0 \\ \text{The probability of selecting a gre}en\text{ marble is }0 \\ \text{red , white or blue marble} \\ P=(4)/(11)+(5)/(22)+(2)/(22) \\ P=(15)/(22) \\ \text{The probability of selecting a red , white or blue marble marble is }(15)/(22) \end{gathered}`