Answer:
The probability of selecting two white tokens is;
[tex]P=\frac{2}{15}[/tex]Explanation:
Given that;
There are 4 white tokens and 6 blue tokens in a bag
Total = 4+6 = 10
And Once a token is selected, it is NOT REPLACED.
The probability of selecting two white tokens can be calculated as;
[tex]P=P_1\times P_2[/tex]The probability of selecting the first white token is;
[tex]P_1=\frac{4}{10}[/tex]The probability of selecting the second white token is;
[tex]P_2=\frac{3}{9}[/tex]Since there is no replacement, the number of white token and the total number of token would reduce by one after the first selection;
So,
[tex]\begin{gathered} P=P_1\times P_2 \\ P=\frac{4}{10}\times\frac{3}{9} \\ P=\frac{12}{90} \\ P=\frac{2}{15} \end{gathered}[/tex]The probability of selecting two white tokens is;
[tex]P=\frac{2}{15}[/tex]